参数资料
型号: mPD789322
厂商: NEC Corp.
元件分类: 8位微控制器
英文描述: 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
中文描述: 8位微控制器与2/4/8K字节在系统可编程闪存
文件页数: 43/96页
文件大小: 482K
代理商: MPD789322
Preliminary Product Information U14673EJ1V0PM00
48
PD789322,789324,789326,789327
5.6.3 Control register for serial interface 10
Serial interface 10 is controlled by the following register.
Serial operation mode register 10 (CSIM10)
Figure 5-23. Format of Serial Operation Mode Register 10
Symbol
<7>
6
5
4
3
2
1
0
Address
After reset
R/W
CSIM10
CSIE10
0
TPS101
TPS100
0
DIR10
CSCK10
0
FF72H
00H
R/W
CSIE10
3-wire serial I/O mode operation control
0
Operation stopped
1
Operation enabled
TPS101
TPS100
Selection of count clock when internal clock selected
00
fX/2
2
(1.25 MHz)
01
fX/2
3
(625 kHz)
Other than above
Setting prohibited
DIR10
First-bit specification
0MSB
1LSB
CSCK10
SIO10 clock selection
0
External clock pulse input to the SCK10 pin
1
Internal clock selected with TPS100, TPS101
Cautions 1. Bits 0, 3 and 6 must be fixed to 0.
2. Be sure to switch to operation mode after stopping the serial transmission/reception
operation.
Remarks 1. fX: Main system clock oscillation frequency
2. The parenthesized values apply to operation at fX = 5.0 MHz.
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