get i2c status
ACK_REC | ack response |
SLAVE_RW | slave read or write |
ARB_LOST | arbitration is lost |
BUS_BUSY | bus is busy |
SLAVE_ADDRESSED | slave reg sub address |
BYTE_TRANS | One byte transit done |
OP_CNT | which operation is working |
SHIFT | shifter content |
SCL_MAIN_STATE_LAST | i2c last main status |
SCL_STATE_LAST | scl last status |