參數(shù)資料
型號: MC68HC05P9AP
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP28
封裝: PLASTIC, DIP-28
文件頁數(shù): 125/158頁
文件大?。?/td> 3885K
代理商: MC68HC05P9AP
Parallel I/O Ports
Port A
Parallel I/O Ports
Figure 31. Port A I/O Logic
DATA DIRECTION
REGISTER A
BIT DDRA7
PAX
EXTERNAL
INTERRUPT
REQUEST
PORT A DATA
REGISTER
BIT PA7
READ $0004
WRITE $0000
READ $0000
RESET
INTERNAL
D
AT
A
B
US
WRITE $0004
PORT A EXTERNAL INTERRUPT
FROM OTHER
VDD
PORT A PINS
D
C
Q
R
Q
I BIT
VDD
(FROM CCR)
RESET
EXTERNAL INTERRUPT VECTOR FETCH
IRQ
MASK OPTION
VDD
ENABLED
DISABLED
EDGE ONLY
EDGE AND LEVEL
SOFTWARE CONTROLLED OPTION
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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