Diff: libs/LPC17xx/LPC17xxLib/src/lpc17xx_gpio.c

Revision:

2:1df0b61d3b5a

diff -r ab59fc9af055 -r 1df0b61d3b5a libs/LPC17xx/LPC17xxLib/src/lpc17xx_gpio.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libs/LPC17xx/LPC17xxLib/src/lpc17xx_gpio.c	Fri Feb 28 18:52:52 2014 -0800
@@ -0,0 +1,759 @@
+#ifdef __LPC17XX__
+
+/**********************************************************************
+* $Id$		lpc17xx_gpio.c				2010-05-21
+*//**
+* @file		lpc17xx_gpio.c
+* @brief	Contains all functions support for GPIO firmware
+* 			library on LPC17xx
+* @version	2.0
+* @date		21. May. 2010
+* @author	NXP MCU SW Application Team
+*
+* Copyright(C) 2010, NXP Semiconductor
+* All rights reserved.
+*
+***********************************************************************
+* Software that is described herein is for illustrative purposes only
+* which provides customers with programming information regarding the
+* products. This software is supplied "AS IS" without any warranties.
+* NXP Semiconductors assumes no responsibility or liability for the
+* use of the software, conveys no license or title under any patent,
+* copyright, or mask work right to the product. NXP Semiconductors
+* reserves the right to make changes in the software without
+* notification. NXP Semiconductors also make no representation or
+* warranty that such application will be suitable for the specified
+* use without further testing or modification.
+**********************************************************************/
+
+/* Peripheral group ----------------------------------------------------------- */
+/** @addtogroup GPIO
+ * @{
+ */
+
+/* Includes ------------------------------------------------------------------- */
+#include "lpc17xx_gpio.h"
+
+/* If this source file built with example, the LPC17xx FW library configuration
+ * file in each example directory ("lpc17xx_libcfg.h") must be included,
+ * otherwise the default FW library configuration file must be included instead
+ */
+#ifdef __BUILD_WITH_EXAMPLE__
+#include "lpc17xx_libcfg.h"
+#else
+#include "lpc17xx_libcfg_default.h"
+#endif /* __BUILD_WITH_EXAMPLE__ */
+
+
+#ifdef _GPIO
+
+/* Private Functions ---------------------------------------------------------- */
+
+static LPC_GPIO_TypeDef *GPIO_GetPointer(uint8_t portNum);
+static GPIO_HalfWord_TypeDef *FIO_HalfWordGetPointer(uint8_t portNum);
+static GPIO_Byte_TypeDef *FIO_ByteGetPointer(uint8_t portNum);
+
+/*********************************************************************//**
+ * @brief		Get pointer to GPIO peripheral due to GPIO port
+ * @param[in]	portNum		Port Number value, should be in range from 0 to 4.
+ * @return		Pointer to GPIO peripheral
+ **********************************************************************/
+static LPC_GPIO_TypeDef *GPIO_GetPointer(uint8_t portNum)
+{
+	LPC_GPIO_TypeDef *pGPIO = NULL;
+
+	switch (portNum) {
+	case 0:
+		pGPIO = LPC_GPIO0;
+		break;
+	case 1:
+		pGPIO = LPC_GPIO1;
+		break;
+	case 2:
+		pGPIO = LPC_GPIO2;
+		break;
+	case 3:
+		pGPIO = LPC_GPIO3;
+		break;
+	case 4:
+		pGPIO = LPC_GPIO4;
+		break;
+	default:
+		break;
+	}
+
+	return pGPIO;
+}
+
+/*********************************************************************//**
+ * @brief		Get pointer to FIO peripheral in halfword accessible style
+ * 				due to FIO port
+ * @param[in]	portNum		Port Number value, should be in range from 0 to 4.
+ * @return		Pointer to FIO peripheral
+ **********************************************************************/
+static GPIO_HalfWord_TypeDef *FIO_HalfWordGetPointer(uint8_t portNum)
+{
+	GPIO_HalfWord_TypeDef *pFIO = NULL;
+
+	switch (portNum) {
+	case 0:
+		pFIO = GPIO0_HalfWord;
+		break;
+	case 1:
+		pFIO = GPIO1_HalfWord;
+		break;
+	case 2:
+		pFIO = GPIO2_HalfWord;
+		break;
+	case 3:
+		pFIO = GPIO3_HalfWord;
+		break;
+	case 4:
+		pFIO = GPIO4_HalfWord;
+		break;
+	default:
+		break;
+	}
+
+	return pFIO;
+}
+
+/*********************************************************************//**
+ * @brief		Get pointer to FIO peripheral in byte accessible style
+ * 				due to FIO port
+ * @param[in]	portNum		Port Number value, should be in range from 0 to 4.
+ * @return		Pointer to FIO peripheral
+ **********************************************************************/
+static GPIO_Byte_TypeDef *FIO_ByteGetPointer(uint8_t portNum)
+{
+	GPIO_Byte_TypeDef *pFIO = NULL;
+
+	switch (portNum) {
+	case 0:
+		pFIO = GPIO0_Byte;
+		break;
+	case 1:
+		pFIO = GPIO1_Byte;
+		break;
+	case 2:
+		pFIO = GPIO2_Byte;
+		break;
+	case 3:
+		pFIO = GPIO3_Byte;
+		break;
+	case 4:
+		pFIO = GPIO4_Byte;
+		break;
+	default:
+		break;
+	}
+
+	return pFIO;
+}
+
+/* End of Private Functions --------------------------------------------------- */
+
+
+/* Public Functions ----------------------------------------------------------- */
+/** @addtogroup GPIO_Public_Functions
+ * @{
+ */
+
+
+/* GPIO ------------------------------------------------------------------------------ */
+
+/*********************************************************************//**
+ * @brief		Set Direction for GPIO port.
+ * @param[in]	portNum		Port Number value, should be in range from 0 to 4
+ * @param[in]	bitValue	Value that contains all bits to set direction,
+ * 							in range from 0 to 0xFFFFFFFF.
+ * 							example: value 0x5 to set direction for bit 0 and bit 1.
+ * @param[in]	dir			Direction value, should be:
+ * 							- 0: Input.
+ * 							- 1: Output.
+ * @return		None
+ *
+ * Note: All remaining bits that are not activated in bitValue (value '0')
+ * will not be effected by this function.
+ **********************************************************************/
+void GPIO_SetDir(uint8_t portNum, uint32_t bitValue, uint8_t dir)
+{
+	LPC_GPIO_TypeDef *pGPIO = GPIO_GetPointer(portNum);
+
+	if (pGPIO != NULL) {
+		// Enable Output
+		if (dir) {
+			pGPIO->FIODIR |= bitValue;
+		}
+		// Enable Input
+		else {
+			pGPIO->FIODIR &= ~bitValue;
+		}
+	}
+}
+
+
+/*********************************************************************//**
+ * @brief		Set Value for bits that have output direction on GPIO port.
+ * @param[in]	portNum		Port number value, should be in range from 0 to 4
+ * @param[in]	bitValue	Value that contains all bits on GPIO to set,
+ * 							in range from 0 to 0xFFFFFFFF.
+ * 							example: value 0x5 to set bit 0 and bit 1.
+ * @return		None
+ *
+ * Note:
+ * - For all bits that has been set as input direction, this function will
+ * not effect.
+ * - For all remaining bits that are not activated in bitValue (value '0')
+ * will not be effected by this function.
+ **********************************************************************/
+void GPIO_SetValue(uint8_t portNum, uint32_t bitValue)
+{
+	LPC_GPIO_TypeDef *pGPIO = GPIO_GetPointer(portNum);
+
+	if (pGPIO != NULL) {
+		pGPIO->FIOSET = bitValue;
+	}
+}
+
+/*********************************************************************//**
+ * @brief		Clear Value for bits that have output direction on GPIO port.
+ * @param[in]	portNum		Port number value, should be in range from 0 to 4
+ * @param[in]	bitValue	Value that contains all bits on GPIO to clear,
+ * 							in range from 0 to 0xFFFFFFFF.
+ * 							example: value 0x5 to clear bit 0 and bit 1.
+ * @return		None
+ *
+ * Note:
+ * - For all bits that has been set as input direction, this function will
+ * not effect.
+ * - For all remaining bits that are not activated in bitValue (value '0')
+ * will not be effected by this function.
+ **********************************************************************/
+void GPIO_ClearValue(uint8_t portNum, uint32_t bitValue)
+{
+	LPC_GPIO_TypeDef *pGPIO = GPIO_GetPointer(portNum);
+
+	if (pGPIO != NULL) {
+		pGPIO->FIOCLR = bitValue;
+	}
+}
+
+/*********************************************************************//**
+ * @brief		Read Current state on port pin that have input direction of GPIO
+ * @param[in]	portNum		Port number to read value, in range from 0 to 4
+ * @return		Current value of GPIO port.
+ *
+ * Note: Return value contain state of each port pin (bit) on that GPIO regardless
+ * its direction is input or output.
+ **********************************************************************/
+uint32_t GPIO_ReadValue(uint8_t portNum)
+{
+	LPC_GPIO_TypeDef *pGPIO = GPIO_GetPointer(portNum);
+
+	if (pGPIO != NULL) {
+		return pGPIO->FIOPIN;
+	}
+
+	return (0);
+}
+
+/*********************************************************************//**
+ * @brief		Enable GPIO interrupt (just used for P0.0-P0.30, P2.0-P2.13)
+ * @param[in]	portNum		Port number to read value, should be: 0 or 2
+ * @param[in]	bitValue	Value that contains all bits on GPIO to enable,
+ * 							in range from 0 to 0xFFFFFFFF.
+ * @param[in]	edgeState	state of edge, should be:
+ * 							- 0: Rising edge
+ * 							- 1: Falling edge
+ * @return		None
+ **********************************************************************/
+void GPIO_IntCmd(uint8_t portNum, uint32_t bitValue, uint8_t edgeState)
+{
+	if((portNum == 0)&&(edgeState == 0))
+		LPC_GPIOINT->IO0IntEnR = bitValue;
+	else if ((portNum == 2)&&(edgeState == 0))
+		LPC_GPIOINT->IO2IntEnR = bitValue;
+	else if ((portNum == 0)&&(edgeState == 1))
+		LPC_GPIOINT->IO0IntEnF = bitValue;
+	else if ((portNum == 2)&&(edgeState == 1))
+		LPC_GPIOINT->IO2IntEnF = bitValue;
+	else
+		//Error
+		while(1);
+}
+
+/*********************************************************************//**
+ * @brief		Get GPIO Interrupt Status (just used for P0.0-P0.30, P2.0-P2.13)
+ * @param[in]	portNum		Port number to read value, should be: 0 or 2
+ * @param[in]	pinNum		Pin number, should be: 0..30(with port 0) and 0..13
+ * 							(with port 2)
+ * @param[in]	edgeState	state of edge, should be:
+ * 							- 0: Rising edge
+ * 							- 1: Falling edge
+ * @return		Bool	could be:
+ * 						- ENABLE: Interrupt has been generated due to a rising
+ * 								edge on P0.0
+ * 						- DISABLE: A rising edge has not been detected on P0.0
+ **********************************************************************/
+FunctionalState GPIO_GetIntStatus(uint8_t portNum, uint32_t pinNum, uint8_t edgeState)
+{
+	if((portNum == 0) && (edgeState == 0))//Rising Edge
+		return ((FunctionalState)(((LPC_GPIOINT->IO0IntStatR)>>pinNum)& 0x1));
+	else if ((portNum == 2) && (edgeState == 0))
+		return ((FunctionalState)(((LPC_GPIOINT->IO2IntStatR)>>pinNum)& 0x1));
+	else if ((portNum == 0) && (edgeState == 1))//Falling Edge
+		return ((FunctionalState)(((LPC_GPIOINT->IO0IntStatF)>>pinNum)& 0x1));
+	else if ((portNum == 2) && (edgeState == 1))
+		return ((FunctionalState)(((LPC_GPIOINT->IO2IntStatF)>>pinNum)& 0x1));
+	else
+		//Error
+		while(1);
+}
+/*********************************************************************//**
+ * @brief		Clear GPIO interrupt (just used for P0.0-P0.30, P2.0-P2.13)
+ * @param[in]	portNum		Port number to read value, should be: 0 or 2
+ * @param[in]	bitValue	Value that contains all bits on GPIO to enable,
+ * 							in range from 0 to 0xFFFFFFFF.
+ * @return		None
+ **********************************************************************/
+void GPIO_ClearInt(uint8_t portNum, uint32_t bitValue)
+{
+	if(portNum == 0)
+		LPC_GPIOINT->IO0IntClr = bitValue;
+	else if (portNum == 2)
+		LPC_GPIOINT->IO2IntClr = bitValue;
+	else
+		//Invalid portNum
+		while(1);
+}
+
+/* FIO word accessible ----------------------------------------------------------------- */
+/* Stub function for FIO (word-accessible) style */
+
+/**
+ * @brief The same with GPIO_SetDir()
+ */
+void FIO_SetDir(uint8_t portNum, uint32_t bitValue, uint8_t dir)
+{
+	GPIO_SetDir(portNum, bitValue, dir);
+}
+
+/**
+ * @brief The same with GPIO_SetValue()
+ */
+void FIO_SetValue(uint8_t portNum, uint32_t bitValue)
+{
+	GPIO_SetValue(portNum, bitValue);
+}
+
+/**
+ * @brief The same with GPIO_ClearValue()
+ */
+void FIO_ClearValue(uint8_t portNum, uint32_t bitValue)
+{
+	GPIO_ClearValue(portNum, bitValue);
+}
+
+/**
+ * @brief The same with GPIO_ReadValue()
+ */
+uint32_t FIO_ReadValue(uint8_t portNum)
+{
+	return (GPIO_ReadValue(portNum));
+}
+
+/**
+ * @brief The same with GPIO_IntCmd()
+ */
+void FIO_IntCmd(uint8_t portNum, uint32_t bitValue, uint8_t edgeState)
+{
+	GPIO_IntCmd(portNum, bitValue, edgeState);
+}
+
+/**
+ * @brief The same with GPIO_GetIntStatus()
+ */
+FunctionalState FIO_GetIntStatus(uint8_t portNum, uint32_t pinNum, uint8_t edgeState)
+{
+	return (GPIO_GetIntStatus(portNum, pinNum, edgeState));
+}
+
+/**
+ * @brief The same with GPIO_ClearInt()
+ */
+void FIO_ClearInt(uint8_t portNum, uint32_t bitValue)
+{
+	GPIO_ClearInt(portNum, bitValue);
+}
+/*********************************************************************//**
+ * @brief		Set mask value for bits in FIO port
+ * @param[in]	portNum		Port number, in range from 0 to 4
+ * @param[in]	bitValue	Value that contains all bits in to set,
+ * 							in range from 0 to 0xFFFFFFFF.
+ * @param[in]	maskValue	Mask value contains state value for each bit:
+ * 							- 0: not mask.
+ * 							- 1: mask.
+ * @return		None
+ *
+ * Note:
+ * - All remaining bits that are not activated in bitValue (value '0')
+ * will not be effected by this function.
+ * - After executing this function, in mask register, value '0' on each bit
+ * enables an access to the corresponding physical pin via a read or write access,
+ * while value '1' on bit (masked) that corresponding pin will not be changed
+ * with write access and if read, will not be reflected in the updated pin.
+ **********************************************************************/
+void FIO_SetMask(uint8_t portNum, uint32_t bitValue, uint8_t maskValue)
+{
+	LPC_GPIO_TypeDef *pFIO = GPIO_GetPointer(portNum);
+	if(pFIO != NULL) {
+		// Mask
+		if (maskValue){
+			pFIO->FIOMASK |= bitValue;
+		}
+		// Un-mask
+		else {
+			pFIO->FIOMASK &= ~bitValue;
+		}
+	}
+}
+
+
+/* FIO halfword accessible ------------------------------------------------------------- */
+
+/*********************************************************************//**
+ * @brief		Set direction for FIO port in halfword accessible style
+ * @param[in]	portNum		Port number, in range from 0 to 4
+ * @param[in]	halfwordNum	HalfWord part number, should be 0 (lower) or 1(upper)
+ * @param[in]	bitValue	Value that contains all bits in to set direction,
+ * 							in range from 0 to 0xFFFF.
+ * @param[in]	dir			Direction value, should be:
+ * 							- 0: Input.
+ * 							- 1: Output.
+ * @return		None
+ *
+ * Note: All remaining bits that are not activated in bitValue (value '0')
+ * will not be effected by this function.
+ **********************************************************************/
+void FIO_HalfWordSetDir(uint8_t portNum, uint8_t halfwordNum, uint16_t bitValue, uint8_t dir)
+{
+	GPIO_HalfWord_TypeDef *pFIO = FIO_HalfWordGetPointer(portNum);
+	if(pFIO != NULL) {
+		// Output direction
+		if (dir) {
+			// Upper
+			if(halfwordNum) {
+				pFIO->FIODIRU |= bitValue;
+			}
+			// lower
+			else {
+				pFIO->FIODIRL |= bitValue;
+			}
+		}
+		// Input direction
+		else {
+			// Upper
+			if(halfwordNum) {
+				pFIO->FIODIRU &= ~bitValue;
+			}
+			// lower
+			else {
+				pFIO->FIODIRL &= ~bitValue;
+			}
+		}
+	}
+}
+
+
+/*********************************************************************//**
+ * @brief		Set mask value for bits in FIO port in halfword accessible style
+ * @param[in]	portNum		Port number, in range from 0 to 4
+ * @param[in]	halfwordNum	HalfWord part number, should be 0 (lower) or 1(upper)
+ * @param[in]	bitValue	Value that contains all bits in to set,
+ * 							in range from 0 to 0xFFFF.
+ * @param[in]	maskValue	Mask value contains state value for each bit:
+ * 					- 0: not mask.
+ * 					- 1: mask.
+ * @return		None
+ *
+ * Note:
+ * - All remaining bits that are not activated in bitValue (value '0')
+ * will not be effected by this function.
+ * - After executing this function, in mask register, value '0' on each bit
+ * enables an access to the corresponding physical pin via a read or write access,
+ * while value '1' on bit (masked) that corresponding pin will not be changed
+ * with write access and if read, will not be reflected in the updated pin.
+ **********************************************************************/
+void FIO_HalfWordSetMask(uint8_t portNum, uint8_t halfwordNum, uint16_t bitValue, uint8_t maskValue)
+{
+	GPIO_HalfWord_TypeDef *pFIO = FIO_HalfWordGetPointer(portNum);
+	if(pFIO != NULL) {
+		// Mask
+		if (maskValue){
+			// Upper
+			if(halfwordNum) {
+				pFIO->FIOMASKU |= bitValue;
+			}
+			// lower
+			else {
+				pFIO->FIOMASKL |= bitValue;
+			}
+		}
+		// Un-mask
+		else {
+			// Upper
+			if(halfwordNum) {
+				pFIO->FIOMASKU &= ~bitValue;
+			}
+			// lower
+			else {
+				pFIO->FIOMASKL &= ~bitValue;
+			}
+		}
+	}
+}
+
+
+/*********************************************************************//**
+ * @brief		Set bits for FIO port in halfword accessible style
+ * @param[in]	portNum		Port number, in range from 0 to 4
+ * @param[in]	halfwordNum	HalfWord part number, should be 0 (lower) or 1(upper)
+ * @param[in]	bitValue	Value that contains all bits in to set,
+ * 							in range from 0 to 0xFFFF.
+ * @return		None
+ *
+ * Note:
+ * - For all bits that has been set as input direction, this function will
+ * not effect.
+ * - For all remaining bits that are not activated in bitValue (value '0')
+ * will not be effected by this function.
+ **********************************************************************/
+void FIO_HalfWordSetValue(uint8_t portNum, uint8_t halfwordNum, uint16_t bitValue)
+{
+	GPIO_HalfWord_TypeDef *pFIO = FIO_HalfWordGetPointer(portNum);
+	if(pFIO != NULL) {
+		// Upper
+		if(halfwordNum) {
+			pFIO->FIOSETU = bitValue;
+		}
+		// lower
+		else {
+			pFIO->FIOSETL = bitValue;
+		}
+	}
+}
+
+
+/*********************************************************************//**
+ * @brief		Clear bits for FIO port in halfword accessible style
+ * @param[in]	portNum		Port number, in range from 0 to 4
+ * @param[in]	halfwordNum	HalfWord part number, should be 0 (lower) or 1(upper)
+ * @param[in]	bitValue	Value that contains all bits in to clear,
+ * 							in range from 0 to 0xFFFF.
+ * @return		None
+ *
+ * Note:
+ * - For all bits that has been set as input direction, this function will
+ * not effect.
+ * - For all remaining bits that are not activated in bitValue (value '0')
+ * will not be effected by this function.
+ **********************************************************************/
+void FIO_HalfWordClearValue(uint8_t portNum, uint8_t halfwordNum, uint16_t bitValue)
+{
+	GPIO_HalfWord_TypeDef *pFIO = FIO_HalfWordGetPointer(portNum);
+	if(pFIO != NULL) {
+		// Upper
+		if(halfwordNum) {
+			pFIO->FIOCLRU = bitValue;
+		}
+		// lower
+		else {
+			pFIO->FIOCLRL = bitValue;
+		}
+	}
+}
+
+
+/*********************************************************************//**
+ * @brief		Read Current state on port pin that have input direction of GPIO
+ * 				in halfword accessible style.
+ * @param[in]	portNum		Port number, in range from 0 to 4
+ * @param[in]	halfwordNum	HalfWord part number, should be 0 (lower) or 1(upper)
+ * @return		Current value of FIO port pin of specified halfword.
+ * Note: Return value contain state of each port pin (bit) on that FIO regardless
+ * its direction is input or output.
+ **********************************************************************/
+uint16_t FIO_HalfWordReadValue(uint8_t portNum, uint8_t halfwordNum)
+{
+	GPIO_HalfWord_TypeDef *pFIO = FIO_HalfWordGetPointer(portNum);
+	if(pFIO != NULL) {
+		// Upper
+		if(halfwordNum) {
+			return (pFIO->FIOPINU);
+		}
+		// lower
+		else {
+			return (pFIO->FIOPINL);
+		}
+	}
+	return (0);
+}
+
+
+/* FIO Byte accessible ------------------------------------------------------------ */
+
+/*********************************************************************//**
+ * @brief		Set direction for FIO port in byte accessible style
+ * @param[in]	portNum		Port number, in range from 0 to 4
+ * @param[in]	byteNum		Byte part number, should be in range from 0 to 3
+ * @param[in]	bitValue	Value that contains all bits in to set direction,
+ * 							in range from 0 to 0xFF.
+ * @param[in]	dir			Direction value, should be:
+ * 							- 0: Input.
+ * 							- 1: Output.
+ * @return		None
+ *
+ * Note: All remaining bits that are not activated in bitValue (value '0')
+ * will not be effected by this function.
+ **********************************************************************/
+void FIO_ByteSetDir(uint8_t portNum, uint8_t byteNum, uint8_t bitValue, uint8_t dir)
+{
+	GPIO_Byte_TypeDef *pFIO = FIO_ByteGetPointer(portNum);
+	if(pFIO != NULL) {
+		// Output direction
+		if (dir) {
+			if (byteNum <= 3) {
+				pFIO->FIODIR[byteNum] |= bitValue;
+			}
+		}
+		// Input direction
+		else {
+			if (byteNum <= 3) {
+				pFIO->FIODIR[byteNum] &= ~bitValue;
+			}
+		}
+	}
+}
+
+/*********************************************************************//**
+ * @brief		Set mask value for bits in FIO port in byte accessible style
+ * @param[in]	portNum		Port number, in range from 0 to 4
+ * @param[in]	byteNum		Byte part number, should be in range from 0 to 3
+ * @param[in]	bitValue	Value that contains all bits in to set mask,
+ * 							in range from 0 to 0xFF.
+ * @param[in]	maskValue	Mask value contains state value for each bit:
+ * 							- 0: not mask.
+ * 							- 1: mask.
+ * @return		None
+ *
+ * Note:
+ * - All remaining bits that are not activated in bitValue (value '0')
+ * will not be effected by this function.
+ * - After executing this function, in mask register, value '0' on each bit
+ * enables an access to the corresponding physical pin via a read or write access,
+ * while value '1' on bit (masked) that corresponding pin will not be changed
+ * with write access and if read, will not be reflected in the updated pin.
+ **********************************************************************/
+void FIO_ByteSetMask(uint8_t portNum, uint8_t byteNum, uint8_t bitValue, uint8_t maskValue)
+{
+	GPIO_Byte_TypeDef *pFIO = FIO_ByteGetPointer(portNum);
+	if(pFIO != NULL) {
+		// Mask
+		if (maskValue) {
+			if (byteNum <= 3) {
+				pFIO->FIOMASK[byteNum] |= bitValue;
+			}
+		}
+		// Un-mask
+		else {
+			if (byteNum <= 3) {
+				pFIO->FIOMASK[byteNum] &= ~bitValue;
+			}
+		}
+	}
+}
+
+
+/*********************************************************************//**
+ * @brief		Set bits for FIO port in byte accessible style
+ * @param[in]	portNum		Port number, in range from 0 to 4
+ * @param[in]	byteNum		Byte part number, should be in range from 0 to 3
+ * @param[in]	bitValue	Value that contains all bits in to set,
+ * 							in range from 0 to 0xFF.
+ * @return		None
+ *
+ * Note:
+ * - For all bits that has been set as input direction, this function will
+ * not effect.
+ * - For all remaining bits that are not activated in bitValue (value '0')
+ * will not be effected by this function.
+ **********************************************************************/
+void FIO_ByteSetValue(uint8_t portNum, uint8_t byteNum, uint8_t bitValue)
+{
+	GPIO_Byte_TypeDef *pFIO = FIO_ByteGetPointer(portNum);
+	if (pFIO != NULL) {
+		if (byteNum <= 3){
+			pFIO->FIOSET[byteNum] = bitValue;
+		}
+	}
+}
+
+
+/*********************************************************************//**
+ * @brief		Clear bits for FIO port in byte accessible style
+ * @param[in]	portNum		Port number, in range from 0 to 4
+ * @param[in]	byteNum		Byte part number, should be in range from 0 to 3
+ * @param[in]	bitValue	Value that contains all bits in to clear,
+ * 							in range from 0 to 0xFF.
+ * @return		None
+ *
+ * Note:
+ * - For all bits that has been set as input direction, this function will
+ * not effect.
+ * - For all remaining bits that are not activated in bitValue (value '0')
+ * will not be effected by this function.
+ **********************************************************************/
+void FIO_ByteClearValue(uint8_t portNum, uint8_t byteNum, uint8_t bitValue)
+{
+	GPIO_Byte_TypeDef *pFIO = FIO_ByteGetPointer(portNum);
+	if (pFIO != NULL) {
+		if (byteNum <= 3){
+			pFIO->FIOCLR[byteNum] = bitValue;
+		}
+	}
+}
+
+
+/*********************************************************************//**
+ * @brief		Read Current state on port pin that have input direction of GPIO
+ * 				in byte accessible style.
+ * @param[in]	portNum		Port number, in range from 0 to 4
+ * @param[in]	byteNum		Byte part number, should be in range from 0 to 3
+ * @return		Current value of FIO port pin of specified byte part.
+ * Note: Return value contain state of each port pin (bit) on that FIO regardless
+ * its direction is input or output.
+ **********************************************************************/
+uint8_t FIO_ByteReadValue(uint8_t portNum, uint8_t byteNum)
+{
+	GPIO_Byte_TypeDef *pFIO = FIO_ByteGetPointer(portNum);
+	if (pFIO != NULL) {
+		if (byteNum <= 3){
+			return (pFIO->FIOPIN[byteNum]);
+		}
+	}
+	return (0);
+}
+
+/**
+ * @}
+ */
+
+#endif /* _GPIO */
+
+/**
+ * @}
+ */
+
+/* --------------------------------- End Of File ------------------------------ */
+#endif /* __LPC17XX__ */