File content as of revision 0:a872e4dd8ec3:

//#define PCA9955_ADDR 0xEC
#define PCA9955A_ADDR 0x02

#define MODE1            0x00
#define MODE2            0x01
#define LEDOUT0          0x02
#define LEDOUT1          0x03
#define LEDOUT2          0x04
#define LEDOUT3          0x05
#define GRPPWM           0x06
#define GRPFREQ          0x07
#define PWM0             0x08
#define PWM1             0x09
#define PWM2             0x0A
#define PWM3             0x0B
#define PWM4             0x0C
#define PWM5             0x0D
#define PWM6             0x0E
#define PWM7             0x0F
#define PWM8             0x10
#define PWM9             0x11
#define PWM10            0x12
#define PWM11            0x13
#define PWM12            0x14
#define PWM13            0x15
#define PWM14            0x16
#define PWM15            0x17
#define IREF0            0x18
#define IREF1            0x19
#define IREF2            0x1A
#define IREF3            0x1B
#define IREF4            0x1C
#define IREF5            0x1D
#define IREF6            0x1E
#define IREF7            0x1F
#define IREF8            0x20
#define IREF9            0x21
#define IREF10           0x22
#define IREF11           0x23
#define IREF12           0x24
#define IREF13           0x25
#define IREF14           0x26
#define IREF15           0x27
#define RAMP_RATE_GRP0   0x28
#define STEP_TIME_GRP0   0x29
#define HOLD_CNTL_GRP0   0x2A
#define IREF_GRP0        0x2B
#define RAMP_RATE_GRP1   0x2C
#define STEP_TIME_GRP1   0x2D
#define HOLD_CNTL_GRP1   0x2E
#define IREF_GRP1        0x2F
#define RAMP_RATE_GRP2   0x30
#define STEP_TIME_GRP2   0x31
#define HOLD_CNTL_GRP2   0x32
#define IREF_GRP2        0x33
#define RAMP_RATE_GRP3   0x34
#define STEP_TIME_GRP3   0x35
#define HOLD_CNTL_GRP3   0x36
#define IREF_GRP3        0x37
#define GRAD_MODE_SEL0   0x38
#define GRAD_MODE_SEL1   0x39
#define GRAD_GRP_SEL0    0x3A
#define GRAD_GRP_SEL1    0x3B
#define GRAD_GRP_SEL2    0x3C
#define GRAD_GRP_SEL3    0x3D
#define GRAD_CNTL        0x3E
#define OFFSET           0x3F
#define SUBADR1          0x40
#define SUBADR2          0x41
#define SUBADR3          0x42
#define ALLCALLADR       0x43
#define PWMALL           0x44
#define IREFALL          0x45
#define EFLAG0           0x46
#define EFLAG1           0x47
#define EFLAG2           0x48
#define EFLAG3           0x49