NEC PD17062 Datasheet page 202

Serial interface
mode register
SB SIO0MS SIO0TX
0 0 0
0 0 0
0 0 0
0 0 0
0 0 1
0 0 1
0 1 0
0 1 0
0 1 1
1 0 0
1 0 0
1 0 0
1 0 0
1 0 1
1 0 1
1 1 0
1 1 0
1 1 1
Remark : Don't care
202
Table 16-2 CH0 Operation Modes
Port 0A I/O
specification
SDA pin
P0ABIO0 P0ABIO1
0 0 SD-IN
0 1 SD-IN
1 0 OUT-PORT
1 1 OUT-PORT OUT-PORT
0 SD-OUT
1 SD-OUT
0 SD-IN
1 OUT-PORT
SD-OUT
0 0 SD-IN
0 1 SD-IN
1 0 OUT-PORT
1 1 OUT-PORT OUT-PORT
0 SD-OUT
1 SD-OUT
0 SD-IN
1 OUT-PORT
SD-OUT
SCL pin Operation mode
CK-IN Serial I/O-SI, EXT-CLK
OUT-PORT Serial I/O-SI, INT-CLK(SOFT-CLK)
IN-PORT 1OUT-PORT+1IN-PORT
2OUT-PORT
CK-IN Serial I/O-SO, EXT-CLK
OUT-PORT Serial I/O-SO, INT-CLK(SOFT-CLK)
CK-OUT Serial I/O-SI, INT-CLK
CK-OUT CLK-OUT+1OUT-PORT
CK-OUT Serial I/O-SO, INT-CLK
CK-IN BUS-SLAVE-RX
OUT-PORT BUS-MASTER-RX(SOFT-CLK)
IN-PORT 1OUT-PORT+1IN-PORT
2OUT-PORT
CK-IN BUS-SLAVE-TX
OUT-PORT BUS-MASTER-TX(SOFT-CLK)
CK-OUT BUS-MASTER-RX
CK-OUT CLK-OUT+1OUT-PORT
CK-OUT BUS-MASTER-TX
PD17062