MC68HC705C8ACS

Manufacturer Part NumberMC68HC705C8ACS
ManufacturerFreescale Semiconductor, Inc
MC68HC705C8ACS datasheet
 
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Freescale Semiconductor, Inc.
7.4.3 Port B Logic
Figure 7-6
READ $0005
WRITE $0005
RESET
WRITE $0001
READ $0001
IRQ
FROM OPTION
REGISTER
FROM OTHER
PORT B PINS
IRQ
RESET
EXTERNAL INTERRUPT VECTOR FETCH
MC68HC705C8A — Rev. 3
MOTOROLA
For More Information On This Product,
shows the port B I/O logic.
PBPU7
FROM MOR1
DATA DIRECTION
REGISTER B
BIT DDRB7
PORT B DATA
REGISTER
BIT PB7
V
DD
D
Q
IRQ
LATCH
C
Q
R
Figure 7-6. Port B I/O Logic
Parallel Input/Output (I/O)
Go to: www.freescale.com
Parallel Input/Output (I/O)
Port B
V
DD
PB7
EXTERNAL
INTERRUPT
REQUEST
I BIT
FROM CCR
Technical Data