File content as of revision 0:74b27674f0d8:

#define PCF8591_ADDR 0x90
//#define PCF8591_ADDR 0x92
//#define PCF8591_ADDR 0x94
//#define PCF8591_ADDR 0x96
//#define PCF8591_ADDR 0x98
//#define PCF8591_ADDR 0x9A
//#define PCF8591_ADDR 0x9C
//#define PCF8591_ADDR 0x9E

#define MODE1            0x00
#define MODE2            0x01
#define PWM0             0x02
#define PWM1             0x03
#define PWM2             0x04
#define PWM3             0x05
#define PWM4             0x06
#define PWM5             0x07
#define PWM6             0x08
#define PWM7             0x09
#define PWM8             0x0a
#define PWM9             0x0b
#define PWM10            0x0c
#define PWM11            0x0d
#define PWM12            0x0e
#define PWM13            0x0f
#define PWM14            0x10
#define PWM15            0x11
#define GRPPWM           0x12
#define GRPFREQ          0x13
#define LEDOUT0          0x14
#define LEDOUT1          0x15
#define LEDOUT2          0x16
#define LEDOUT3          0x17
#define SUBADR1          0x18
#define SUBADR2          0x19
#define SUBADR3          0x1a
#define ALLCALLADR       0x1b