参数资料
型号: MC68HC05C8AFNE
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQCC44
封装: PLASTIC, LCC-44
文件页数: 50/116页
文件大小: 781K
代理商: MC68HC05C8AFNE
Input/Output Programming
MC68HC05C8A MC68HCL05C8A MC68HSC05C8A Data Sheet, Rev. 5.1
Freescale Semiconductor
39
Figure 7-2. I/O Circuitry
READ DDRx
WRITE DDRx
RESET
WRITE PORTx
READ PORTx
INTE
RNAL
D
AT
A
B
U
S
PORT x DATA
DATA DIRECTION
REGISTER x BIT
REGISTER BIT
(LATCHED OUTPUT)
I/O
PIN
[1]
[2]
[3]
[1] This output buffer enables the latched output to drive the pin when DDR bit is 1 (output mode).
[2] This input buffer is enabled when DDR bit is 0 (input mode).
[3] This input buffer is enabled when DDR bit is 1 (output mode).
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