mc68hc912dg128 Freescale Semiconductor, Inc, mc68hc912dg128 Datasheet - Page 151

• Manufacturer Part Number: mc68hc912dg128
• Description: M68hc12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

KWPJ — Key Wake-up Port J Polarity Register
KWPH — Key Wake-up Port H Polarity Register
MC68HC912DG128 — Rev 3.0
MOTOROLA
RESET:
RESET:
KWPH7
KWPJ7
Bit 7
Bit 7
0
0
KWPH6
KWPJ6
6
0
6
0
Read and write anytime. It is best to clear the flags after initializing this
register because changing the polarity of a bit can cause the associated
flag to become set.
KWPJ[7:0] — Key Wake-up Port J Polarity Selects
Read and write anytime. It is best to clear the flags after initializing this
register because changing the polarity of a bit can cause the associated
flag to become set.
KWPH[7:0] — Key Wake-up Port H Polarity Selects
Freescale Semiconductor, Inc.
For More Information On This Product,
0 = Falling edge on the associated port J pin sets the associated
1 = Rising edge on the associated port J pin sets the associated
0 = Falling edge on the associated port H pin sets the associated
1 = Rising edge on the associated port H pin sets the associated
KWPH5
KWPJ5
5
0
5
0
flag bit in the KWIFJ register and a resistive pull-up device is
connected to associated port J input pin.
flag bit in the KWIFJ register and a resistive pull-down device
is connected to associated port J input pin.
flag bit in the KWIFH register and a resistive pull-up device is
connected to associated port H input pin.
flag bit in the KWIFH register and a resistive pull-down device
is connected to associated port H input pin.
I/O Ports with Key Wake-up
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KWPH4
KWPJ4
4
0
4
0
KWPH3
KWPJ3
3
0
3
0
KWPH2
KWPJ2
2
0
2
0
Key Wake-up and Port Registers
KWPH1
KWPJ1
1
0
1
0
I/O Ports with Key Wake-up
KWPH0
KWPJ0
Bit 0
Bit 0
0
0
Technical Data
$0030
$0031
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