参数资料
型号: MC68HC05C8AFB
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP44
封装: QFP-44
文件页数: 118/166页
文件大小: 1914K
代理商: MC68HC05C8AFB
MC68HC05C8A MC68HCL05C8A MC68HSC05C8A — Rev. 5.0
Technical Data
MOTOROLA
Input/Output (I/O) Ports
55
Technical Data — MC68HC05C8A MC68HCL05C8A MC68HSC05C8A
Section 7. Input/Output (I/O) Ports
7.1 Contents
7.2 Introduction
The MC68HC05C8A has three 8-bit input/output (I/O) ports.These 24
port pins are programmable as either inputs or outputs under software
control of the data direction registers. Port D does not have a data
direction register, and its seven pins are input only with the exception of
certain serial communications (SCI)/serial peripheral interface (SPI)
functions.
NOTE:
To avoid a glitch on the output pins, write data to the I/O port data
register before writing a 1 to the corresponding data direction register.
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