mc68hc908bd48 Freescale Semiconductor, Inc, mc68hc908bd48 Datasheet - Page 253

• Manufacturer Part Number: mc68hc908bd48
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

MC68HC908BD48
Freescale Semiconductor
$001E
Addr.
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 18-1. IRQ Module Block Diagram
Table 18-1. IRQ I/O Register Summary
V
MODE
DD
D
Bit 7
CK
0
0
CLR
IRQ
FF
Q
External Interrupt (IRQ)
= Unimplemented
6
0
0
5
0
0
IMASK
SYNCHRO-
VOLTAGE
DETECT
4
0
0
NIZER
HIGH
IRQF
3
0
ACK
IRQF
2
0
0
External Interrupt (IRQ)
IMASK
TO CPU FOR
BIL/BIH
INSTRUCTIONS
IRQ
INTERRUPT
REQUEST
TO MODE
SELECT
LOGIC
1
0
Data Sheet
MODE
Bit 0
0
253