ARM-M0-LPC1114 I2C串口通讯程序-From device to device, the I2C communication protocol may vary,

in the example below, the protocol uses repeated start to read data from or

write to the device:

For master read: the sequence is: STA,Addr(W),offset,RE-STA,Addr(r),data...STO

for master write: the sequence is: STA,Addr(W),offset,RE-STA,Addr(w),data...STO

Thus, in state 8, the address is always WRITE. in state 10, the address could

be READ or WRITE depending on the I2C command.