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: 44/96页
文件大小: 482K
代理商: MPD789322
Preliminary Product Information U14673EJ1V0PM00
49
PD789322,789324,789326,789327
Table 5-11. Operation Mode Settings for Serial Interface 10
(1) Operation stopped mode
First
Bit
P22/SI10
Pin Function
P21/SO10
Pin Function
P20/SCK10
Pin Function
P22
P21
P20
CSIE10
0
CSIM10
DIR10
×
CSCK10
×
PM22
×Note 1
P22
×Note 1
PM21
×Note 1
P21
×Note 1
PM20
×Note 1
P20
×Note 1
Shift
Clock
Setting prohibited
Other than above
(2) 3-wire serial I/O mode
First
Bit
P22/SI10
Pin Function
P21/SO10
Pin Function
P20/SCK10
Pin Function
MSB
LSB
SI10Note 2
SO10
(CMOS output)
SCK10 input
SCK10 output
SCK10 input
SCK10 output
CSIE10
1
CSIM10
DIR10
0
1
CSCK10
0
1
0
1
PM22
1Note 2
P22
×Note 2
PM21
0
P21
1
PM20
1
0
1
0
P20
×
1
×
1
Shift
Clock
External
clock
Internal
clock
External
clock
Internal
clock
Setting prohibited
Other than above
Notes 1. Can be used freely as a port
2. Can be used as P22 (CMOS I/O) only when transmitting
Remark
×: don’t care
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