Diff: MCP23S17.h

Revision:

0:bf72877f77ab

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MCP23S17.h	Sun Dec 05 14:31:49 2010 +0000
@@ -0,0 +1,54 @@
+/* MCP23S17 - drive the Microchip MCP23S17 16-bit Port Extender using SPI
+* Copyright (c) 2010 Romilly Cocking
+* Released under the MIT License: http://mbed.org/license/mit
+*
+* version 0.4
+*/
+#include "mbed.h"
+
+
+#define INTERRUPT_POLARITY_BIT 0x02
+#define INTERRUPT_MIRROR_BIT   0x40
+
+// all register addresses assume IOCON.BANK = 0 (POR default)
+
+#define IODIRA      0x00
+#define IODIRB      0x01
+#define IPOLA       0x02
+#define IPOLB       0x03
+#define GPINTENA    0x04
+#define GPINTENB    0x05
+#define DEFVALA     0x06
+#define DEFVALB     0x07
+#define INTCONA     0x08
+#define INTCONB     0x09
+#define IOCONA      0x0A
+#define IOCONB      0x0B
+#define GPPUA       0x0C
+#define GPPUB       0x0D
+#define INTFA       0x0E
+#define INTFB       0x0F
+#define INTCAPA     0x10
+#define INTCAPB     0x11
+#define GPIOA       0x12
+#define GPIOB       0x13
+#define OLATA       0x14
+#define OLATB       0x15
+
+#define LCD_HALT    0x80
+#define LCD_FS      0x20
+#define LCD_RST     0x10
+#define LCD_CD      0x08
+#define LCD_CE      0x04
+#define LCD_RD      0x02
+#define LCD_WR      0x01
+
+//      T6963C OPCODES
+#define TXHOME      0x40    // SET TXT HM ADD
+#define TXAREA      0x41    // SET TXT AREA
+#define GRHOME      0x42    // SET GRAPHIC HOME ADDRESS
+#define GRAREA      0x43    // SET GRAPHIC AREA
+#define OFFSET      0x22    // SET OFFSET ADDRESS
+#define ADPSET      0x24    // SET ADDRESS POINTER
+#define AWRON       0xB0    // SET AUTO WRITE MODE
+#define AWROFF      0xB2    // RESET AUTO WRITE MODE