CHAPTER 13 SERIAL INTERFACE CSI10
Preliminary User’s Manual U16846EJ1V0UD
270
The relationship between the register settings and pins is shown below.
Table 13-2. Relationship Between Register Settings and Pins
Pin Function
CSIE10
TRMD10
PM11 P11 PM12 P12 PM10 P10
CSI10
Operation
P11/SI10
(/RxD0
Note 4
)
P12/SO10 P10/SCK10
(/TxD0
Note 4
)
0 ×
×
Note 1
×
Note 1
×
Note 1
×
Note 1
×
Note 1
×
Note 1
Stop
P11
(/RxD0
Note 4
)
P12
P10
(/TxD0
Note 4
)
Note 2
1 0 1 ×
×
Note 1
×
Note 1
1 ×
Slave
reception
Note 3
SI10 P12
SCK10
(input)
Note 3
1 1
×
Note 1
×
Note 1
0 0 1 ×
Slave
transmission
Note 3
P11
(/RxD0
Note 4
)
SO10
SCK10
(input)
Note 3
1 1 1 × 0 0 1 ×
Slave
transmission/
reception
Note 3
SI10 SO10
SCK10
(input)
Note 3
1 0 1 ×
×
Note 1
×
Note 1
0 1
Master
reception
SI10 P12
SCK10
(output)
1 1
×
Note 1
×
Note 1
0 0 0 1
Master
transmission
P11
(/RxD0
Note 4
)
SO10
SCK10
(output)
1 1 1 × 0 0 0 1 Master
transmission/
reception
SI10 SO10
SCK10
(output)
Notes 1. Can be set as port function.
2. To use P10/SCK10(/TxD0
Note 4
) as port pins, clear CKP10 to 0.
3. To use the slave mode, set CKS102, CKS101, and CKS100 to 1, 1, 1.
4.
µ
PD78F0102H and 78F0103H only.
Remark ×:
don’t
care
CSIE10:
Bit 7 of serial operation mode register 10 (CSIM10)
TRMD10:
Bit 6 of CSIM10
CKP10:
Bit 4 of serial clock selection register 10 (CSIC10)
CKS102, CKS101, CKS100: Bits 2 to 0 of CSIC10
PM1×:
Port mode register
P1×:
Port output latch