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78K0/Kx2-L CHAPTER 16 SERIAL INTERFACES CSI10 AND CSI11

R01UH0028EJ0400 Rev.4.00 578

Sep 27, 2010

The relationship between the register settings and pins is shown below.

Table 16-2. Relationship Between Register Settings and Pins (1/4)

(a) Serial interface CSI10

Pin Function CSIE10 TRMD10 PM11 P11 PM12 P12 PM10 P10

CSI10

Operation

SI10/P11 SO10/P12 SCK10/P10

0 0 ×

Note 1

Stop P11 P12 P10

Note 2

1 0 1

Note 1

Slave

reception

Note 3

SI10 P12

SCK10

(input)

Note 3

1 1 ×

Note 1

0 0 1

Slave

transmission

Note 3

P11 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

0 1 Master reception SI10 P12

SCK10

(output)

1 1 ×

Note 1

0 0 0 1

Master

transmission

P11 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 as port pins, clear CKP10 to 0.

3. To use the slave mode, set CKS102, CKS101, and CKS100 to 1, 1, 1.

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

PM×: Port mode register

P×: Port output latch