MC68HC912BD32CFU10 FREESCALE [Freescale Semiconductor, Inc], MC68HC912BD32CFU10 Datasheet - Page 96

• Manufacturer Part Number: MC68HC912BD32CFU10
• Description: Advance Information
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

INTCR — Interrupt Control Register
Interrupt Control and Priority Registers
Resets and Interrupts
MC68HC912BD32 Rev 1.0
RESET:
IRQE
Bit 7
0
IRQE — IRQ Select Edge Sensitive Only
IRQEN — External IRQ Enable
DLY — Enable Oscillator Start-up Delay on Exit from STOP
IRQEN
IRQE can be read anytime and written once in normal modes. In
special modes, IRQE can be read anytime and written anytime,
except the first write is ignored.
The IRQ pin has an internal pull-up.
IRQEN can be read and written anytime in all modes.
The delay time of about 4096 cycles is based on the E clock rate.
DLY can be read anytime and written once in normal modes. In
special modes, DLY can be read and written anytime.
Freescale Semiconductor, Inc.
6
1
For More Information On This Product,
0 = IRQ configured for low-level recognition.
1 = IRQ configured to respond only to falling edges (on pin
0 = External IRQ pin disconnected from interrupt logic
1 = External IRQ pin connected to interrupt logic
0 = No stabilization delay imposed on exit from STOP mode. A
1 = Stabilization delay is imposed before processing resumes after
PE1/IRQ).
stable external oscillator must be supplied.
STOP.
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DLY
5
1
Resets and Interrupts
4
0
0
3
0
0
2
0
0
1
0
0
Bit 0
0
0
$001E
4-resets