MC68HC705C8A_13 Datasheet, PDF (54/222 Pages) Freescale Semiconductor, Inc – Technical Data

Interrupts
Freescale Semiconductor, Inc.
READ $0005
WRITE $0005
RESET
WRITE $0001
PBPU7
FROM MOR1
DATA DIRECTION
REGISTER B
BIT DDRB7
PORT B DATA
REGISTER
BIT PB7
READ $0001
V_DD
PB7
IRQ
FROM OPTION
REGISTER
FROM OTHER
PORT B PINS
IRQ
V_DD
D
Q
C
Q
R
I BIT
FROM CCR
RESET
EXTERNAL INTERRUPT VECTOR FETCH
Figure 4-3. Port B I/O Logic
EXTERNAL
INTERRUPT
REQUEST
Technical Data
54
Interrupts
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MC68HC705C8A — Rev. 3