Renesas rl78 User Manual

RL78/G1A

CHAPTER 13 SERIAL INTERFACE IICA

(3) Slave device operation (when receiving extension code)

The device is always participating in communication when it receives an extension code.

(a) Start ~ Code ~ Data ~ Data ~ Stop

(i) When WTIM0 = 0

AD6 to AD0

R/W ACK

D7 to D0

ACK

1: IICS0 = 0010×010B

2: IICS0 = 0010×000B

3: IICS0 = 0010×000B

4: IICS0 = 00000001B

Remark

: Always

generated

: Generated only when SPIE0 = 1

×:

Don’t

care

(ii) When WTIM0 = 1

AD6 to AD0

R/W ACK

D7 to D0

ACK

1: IICS0 = 0010×010B

2: IICS0 = 0010×110B

3: IICS0 = 0010×100B

4: IICS0 = 0010××00B

5: IICS0 = 00000001B