MC68HC908JK3 MOTOROLA [Motorola, Inc], MC68HC908JK3 Datasheet - Page 164

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MC68HC908JK3

Manufacturer Part Number
MC68HC908JK3
Description
MC68HC908JK1
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet

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External Interrupt (IRQ)
Technical Data
164
Address:
IRQF1 — IRQ1 Flag
ACK1 — IRQ1 Interrupt Request Acknowledge Bit
IMASK1 — IRQ1 Interrupt Mask Bit
MODE1 — IRQ1 Edge/Level Select Bit
IRQPUD — IRQ1 Pin Pull-up control bit
Reset:
Read:
Write:
POR:
This read-only status bit is high when the IRQ1 interrupt is pending.
Writing a logic one to this write-only bit clears the IRQ1 latch. ACK1
always reads as logic zero. Reset clears ACK1.
Writing a logic one to this read/write bit disables IRQ1 interrupt
requests. Reset clears IMASK1.
This read/write bit controls the triggering sensitivity of the IRQ1 pin.
Reset clears MODE1.
1 = IRQ1 interrupt pending
0 = IRQ1 interrupt not pending
1 = IRQ1 interrupt requests disabled
0 = IRQ1 interrupt requests enabled
1 = IRQ1 interrupt requests on falling edges and low levels
0 = IRQ1 interrupt requests on falling edges only
1 = Internal pull-up is disconnected
0 = Internal pull-up is connected between IRQ1 pin and V
IRQPUD
$001E
Bit 7
Figure 13-4. Configuration Register 2 (CONFIG2)
R
0
0
External Interrupt (IRQ)
= Reserved
R
6
0
0
R
5
0
0
Not affected Not affected
LVIT1
4
0
LVIT0
3
0
MC68H(R)C908JL3
R
2
0
0
R
1
0
0
MOTOROLA
DD
Rev. 1.0
Bit 0
R
0
0

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