MCMC68HC05L16 Freescale Semiconductor, Inc, MCMC68HC05L16 Datasheet - Page 45

• Manufacturer Part Number: MCMC68HC05L16
• Description: M68hc05 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

4.3 Interrupt Control Register
IRQ1E — IRQ1 Interrupt Enable
IRQ2E — IRQ2 Interrupt Enable
Bit 5 — Reserved
KWIE — Key Wakeup Interrupt (KWI) Enable
IRQ1S — IRQ1 Select Edge Sensitive Only
IRQ2S — IRQ2 Select Edge Sensitive Only
Bits 1 and 0 — Reserved
Freescale Semiconductor
The IRQ1E bit enables IRQ1 interrupt when IRQ1F is set. This bit is cleared on reset.
The IRQ2E bit enables IRQ2 interrupt when IRQ2F is set. This bit is cleared on reset.
This bit is not used and is always read as logic 0.
The KWIE bit enables key wakeup interrupt when KWIF is set. This bit is cleared on reset.
These bits are not used and always read as logic 0.
0 = IRQ1 interrupt disabled
1 = IRQ1 interrupt enabled
0 = IRQ2 interrupt disabled
1 = IRQ2 interrupt enabled
0 = KWI disabled
1 = KWI enabled
0 = IRQ1 configured for low level and negative edge sensitive
1 = IRQ1 configured to respond only to negative edges
0 = IRQ2 configured for low level and negative edge sensitive
1 = IRQ2 configured to respond only to negative edges
Address:
Reset:
Read:
Write:
IRQ1E
$0008
Bit 7
0
Figure 4-7. Interrupt Control Register (INTCR)
MC68HC05L16 • MC68HC705L16 Data Sheet, Rev. 4.1
IRQ2E
6
0
5
0
0
KWIE
4
0
IRQ1S
3
0
IRQ2S
2
0
1
0
0
Interrupt Control Register
Bit 0
0
0
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