mc68hc912d60c Freescale Semiconductor, Inc, mc68hc912d60c Datasheet - Page 132
mc68hc912d60c
Manufacturer Part Number
mc68hc912d60c
Description
Hc12 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC912D60C.pdf
(460 pages)
- Current page: 132 of 460
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I/O Ports with Key Wake-up
KWIEG — Key Wake-up Port G Interrupt Enable Register
KWIEH — Key Wake-up Port H Interrupt Enable Register
Technical Data
132
RESET:
RESET:
KWIEH7
WI2CE
Bit 7
Bit 7
0
0
KWIEG6
KWIEH6
6
0
6
0
Read and write anytime.
WI2CE — Wake-up I
KWIEG[6:0] — Key Wake-up Port G Interrupt Enables
Read and write anytime.
KWIEH[7:0] — Key Wake-up Port H Interrupt Enables
When WI2CE is set, PG6 and PG7 operate in wired-OR or open-drain
mode.
The I
SDA line when SCL is high. When WI2CE is set, a falling edge on
PG6 (SDA) is recognized only if PG7 (SCL) is high.
Depending on WI2CE bit, KWIEG6 enables either falling edge or I
Start condition interrupt.
0 = PG6 default key wake-up on falling edge
1 = I
0 = Interrupt for the associated bit is disabled
1 = Interrupt for the associated bit is enabled
0 = Interrupt for the associated bit is disabled
1 = Interrupt for the associated bit is enabled
KWIEG5
KWIEH5
2
5
0
C Start condition is defined as a high to low transition of the
5
0
2
C Start condition detection on PG7 and PG6
I/O Ports with Key Wake-up
KWIEG4
KWIEH4
4
0
4
0
2
C Enable
KWIEG3
KWIEH3
3
0
3
0
KWIEG2
KWIEH2
2
0
2
0
KWIEG1
KWIEH1
MC68HC912D60A — Rev. 3.1
1
0
1
0
Freescale Semiconductor
KWIEG0
KWIEH0
Bit 0
Bit 0
0
0
$002C
$002D
2
C
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