MC68HC908AB32 MOTOROLA [Motorola, Inc], MC68HC908AB32 Datasheet - Page 341

• Manufacturer Part Number: MC68HC908AB32
• Description: HCMOS Microcontroller Unit
• Manufacturer: MOTOROLA [Motorola, Inc]

MC68HC908AB32
MOTOROLA
Addr.
$001A
IRQ Status and Control
IRQ
Register Name
DECODER
NOTE:
VECTOR
RESET
FETCH
ACK
V
—
DD
I
PULLUP
DEVICE
NTERNAL
Rev. 1.0
Register
(ISCR)
The interrupt mask (I) in the condition code register (CCR) masks all
interrupt requests, including external interrupt requests.
Exception Control
Reset:
Read:
Write:
Freescale Semiconductor, Inc.
Figure 18-2. IRQ I/O Register Summary
V
MODE
DD
For More Information On This Product,
D
CK
Bit 7
CLR
IRQ
0
0
FF
Go to: www.freescale.com
Q
External Interrupt (IRQ)
Figure 18-1. IRQ Module Block Diagram
= Unimplemented
6
0
0
.)
5
0
0
IMASK
SYNCHRO-
VOLTAGE
DETECT
NIZER
4
0
0
HIGH
IRQF
3
0
IRQF
ACK
2
0
0
External Interrupt (IRQ)
Functional Description
(See 8.6
IMASK
1
0
Technical Data
TO CPU FOR
BIL/BIH
INSTRUCTIONS
IRQ
INTERRUPT
REQUEST
TO MODE
SELECT
LOGIC
MODE
Bit 0
0
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