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9.3 Register Controlling Serial Interface 10
The following register is used to control serial interface 10.
• Serial operation mode register 10 (CSIM10)
(1) Serial operation mode register 10 (CSIM10)
This register is used to control serial interface 10 and set the serial clock and start bit.
CSIM10 is set with a 1-bit or 8-bit memory manipulation instruction.
RESET input sets CSIM10 to 00H.
Symbol
<7>
6
CSIM10
CSIE10
0
CSIE10
0
Operation disabled
1
Operation enabled
TPS100
0
f
/2
2
X
1
f
/2
3
X
DIR10
MSB
0
1
LSB
CSCK10
Clock input to SCK10 pin from external
0
1
Internal clock selected by TPS100
Caution
Bits 0, 3, 5, and 6 must be set to 0.
CHAPTER 9
SERIAL INTERFACE 10
Figure 9-2. Format of Serial Operation Mode Register 10
5
4
3
2
0
TPS100
0
DIR10 CSCK10
Operation control in 3-wire serial I/O mode
Count clock selection when operation enabled in 3-wire serial I/O mode
Clock selection in 3-wire serial I/O mode
User's Manual U12978EJ3V0UD
1
0
Address
After reset
0
FF72H
Start bit specification
R/W
00H
R/W
157
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