參數(shù)資料
型號: MC68HC705C9ACS
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, UVPROM, 2.1 MHz, MICROCONTROLLER
文件頁數(shù): 107/177頁
文件大?。?/td> 1941K
代理商: MC68HC705C9ACS
General Description
Functional Pin Descriptions
MC68HC705C9A — Rev. 4.0
Advance Information
MOTOROLA
General Description
35
1.7.8 PA0–PA7
These eight I/O lines comprise port A. The state of each pin is software
programmable and all port A pins are configured as inputs during reset.
1.7.9 PB0–PB7
These eight I/O lines comprise port B. The state of each pin is software
programmable and all port B pins are configured as inputs during reset.
Port B has mask option register enabled pullup devices and interrupt
capability selectable for any pin. Refer to Section 7. Input/Output Ports
for more detail.
1.7.10 PC0–PC7
These eight I/O lines comprise port C. The state of each pin is software
programmable and all port C pins are configured as inputs during reset.
PC7 has high current sink and source capability. Refer to
1.7.11 PD0–PD5 and PD7
These seven I/O lines comprise port D. When configured as a C9A the
state of each pin is software programmable and all port D pins are
configured as inputs during reset. When configured as a C12A, the
port D pins are input only. Refer to Section 7. Input/Output Ports for
more detail.
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