参数资料
型号: S3P9664-AM
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PDIP24
封装: 0.300 INCH, SDIP-24
文件页数: 130/148页
文件大小: 784K
代理商: S3P9664-AM
S3C9664/P9664 (Preliminary Spec)
I/O PORTS
9-5
PORT 1
Port 1 is bit-programmable, general-purpose, I/O ports. You can configure schmitt trigger input mode, rising edge
external interrupt with pull-up or falling edge external interrupt mode, N-channel open drain output (only for P1.7,
P1.6) A/D converter input (only for P1.1-P1.5) and push pull output mode .
In normal operating mode, a reset clears the port 0 control registers (P1CONH, P1CONL) to “00H”, configuring
P1.0–P1.7 as schmitt trigger input, falling edge external interrupt with pull-up resister.
Port 1 is accessed directly by writing or reading the port 1 data register. P1 (E1H, Page 0).
Port 1 Control Register, High Byte (P1CONH)
P1CONH, E9H, R/W (Page 0)
.7
.6
.5
.4
.3
.2
.1
.0
MSB
LSB
P1.4
P1.6
P1CONH
P1.7
P1.5
0
1
0
1
7,5
6,4
Schmitt trigger input, falling edge external interrupt
with pull-up.
Schmitt trigger input, rising edge external interrupt.
N-CH open drain output mode.
Push-Pull output
Port Mode Selection
0
1
0
1
3,1
2,0
Schmitt trigger input, falling edge external interrupt
with pull-up.
Input,A/D converter off,rising edge external interrupt.
A/D converter input ; input off
Push-Pull output
Port Mode Selection
Figure 9-5. Port 1 Control Register High Byte (P1CONH)
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