mc68hc908gp20 Freescale Semiconductor, Inc, mc68hc908gp20 Datasheet - Page 187

• Manufacturer Part Number: mc68hc908gp20
• Description: M68hc08 Family Of 8-bit Microcontroller Units Mcus
• Manufacturer: Freescale Semiconductor, Inc

MC68HC908GP20
Freescale Semiconductor
Addr.
$001D
IRQ
IRQ Status and Control
Register Name
Register (INTSCR)
DECODER
NOTE:
VECTOR
V
FETCH
RESET
DD
ACK
INTERNAL
PULLUP
DEVICE
—
Rev 2.1
The interrupt mask (I) in the condition code register (CCR) masks all
interrupt requests, including external interrupt requests.
Reset:
Read:
Write:
Figure 12-1. IRQ Module Block Diagram
Figure 12-2. IRQ I/O Register Summary
V
MODE
DD
Bit 7
D
CK
0
0
CLR
IRQ
FF
Q
= Unimplemented
6
0
0
5
0
0
IMASK
SYNCHRO-
VOLTAGE
DETECT
4
0
0
NIZER
HIGH
IRQF
3
0
ACK
IRQF
2
0
0
Advance Information
IMASK
TO CPU FOR
BIL/BIH
INSTRUCTIONS
IRQ
INTERRUPT
REQUEST
TO MODE
SELECT
LOGIC
1
0
MODE
Bit 0
0
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