参数资料
型号: MB89T635P-SH
元件分类: 微控制器/微处理器
英文描述: 8-BIT, 10 MHz, MICROCONTROLLER, PDIP64
封装: SHRINK, DIP-64
文件页数: 111/153页
文件大小: 7326K
代理商: MB89T635P-SH
HARDWARE CONFIGURATION
2-37
P70 to P74 Input-only ports (also used as external-interrupt input)
Operation for external-interrupt input
See the description of the external interrupts.
Operation for input port
The PDR can only be read and the value of the pin is always read. When using as an external-interrupt
input, the value of the pin can also be read.
Note: P70 and P71 serve as oscillation circuit pins when the double clocks are operated and serve as
input-only port which is also serve as external interrupt input, when single clock mode is operated.
State at reset
PDR is not initialized by raset.
Operation at STOP mode
These bits serve as the external interrupt input pins even at STOP mode.
Fig. 2.15 Port 7
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