NEC mPD78F0730 Preliminary User's Manual page 262

The relationship between the register settings and pins is shown below.
CSIE10 TRMD10 PM11
0 ×
1 0
1 1
1 1
1 0
1 1
1 1
Notes 1. Can be set as port function.
Remark ×:
262
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CHAPTER 11 SERIAL INTERFACE CSI10
Table 11-2. Relationship Between Register Settings and Pins
P11 PM12 P12
× × × ×
Note 1 Note 1 Note 1 Note 1
× × ×
Note 1 Note 1
1
× ×
Note 1 Note 1
0 0
×
1 0 0
× × ×
Note 1 Note 1
1
× ×
Note 1 Note 1
0 0
×
1 0 0
2. To use P10/SCK10 as port pins, clear CKP10 to 0.
3. To use the slave mode, set CKS102, CKS101, and CKS100 to 1, 1, 1.
CSIE10:
TRMD10:
CKP10:
CKS102, CKS101, CKS100: Bits 2 to 0 of CSIC10
PM1×:
P1×:
Preliminary User's Manual U19014EJ1V0UD
CSI10
PM10 P10
Operation
× ×
Note 1 Note 1
Stop
×
1 Slave
Note 3
reception
×
1 Slave
transmission
×
1 Slave
transmission/
Note 3
reception
0 1 Master reception
0 1 Master
transmission
0 1 Master
transmission/
reception
don't care
Bit 7 of serial operation mode register 10 (CSIM10)
Bit 6 of CSIM10
Bit 4 of serial clock selection register 10 (CSIC10)
Port mode register
Port output latch
Pin Function
SI10/P11 SO10/P12
P11 P12
SI10 P12
P11 SO10
Note 3
SI10 SO10
SI10 P12
P11 SO10
SI10 SO10
SCK10/
P10
Note 2
P10
SCK10
Note 3
(input)
SCK10
Note 3
(input)
SCK10
Note 3
(input)
SCK10
(output)
SCK10
(output)
SCK10
(output)