参数资料
型号: S3P9664-SM
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PDSO24
封装: 0.300 INCH, SOP-24
文件页数: 126/148页
文件大小: 784K
代理商: S3P9664-SM
I/O PORTS
S3C9664/P9664 (Preliminary Spec)
9-2
PORT DATA REGISTERS
Table 9-2 gives you an overview of the port data register names, locations, and addressing characteristics.
Data registers for ports 0 and 1 have the structure shown in Figure 9-1.
Table 9-2. Port Data Register Summary
Register Name
Mnemonic
Hex
R/W
Port 0 data register
P0
E0H
R/W
Port 1 data register
P1
E1H
R/W
Port 2 data register
P2
FAH
R/W
P0.4
P1.4
P0.3
P1.3
I/O Port n DATA Register (N = 0-2)
.5
.4
.3
.2
.1
.0
MSB
LSB
Pn.1
P0.2
P1.2
Pn.0
.6
.7
P0.5
P1.5
P0.6
P1.6
P0.7
P1.7
Figure 9-1. Port Data Register Format
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