MC912DG128A Motorola, MC912DG128A Datasheet - Page 130

• Manufacturer Part Number: MC912DG128A
• Description: Microcontrollers
• Manufacturer: Motorola

KWIFJ — Key Wake-up Port J Flag Register
KWIFH — Key Wake-up Port H Flag Register
I/O Ports With Key Wake-Up
MC68HC912DT128A Rev 2.0
130
RESET:
RESET:
KWIFH7
KWIFJ7
Bit 7
Bit 7
0
0
KWIFH6
KWIFJ6
6
0
6
0
Read and write anytime.
Each flag is set by an active edge on its associated input pin. This could
be a rising or falling edge based on the state of the KWPJ register. To
clear the flag, write one to the corresponding bit in KWIFJ.
Initialize this register after initializing KWPJ so that illegal flags can be
cleared.
KWIFJ[7:0] — Key Wake-up Port J Flags
Read and write anytime.
Each flag is set by an active edge on its associated input pin. This could
be a rising or falling edge based on the state of the KWPH register. To
clear the flag, write one to the corresponding bit in KWIFH.
Initialize this register after initializing KWPH so that illegal flags can be
cleared.
KWIFH[7:0] — Key Wake-up Port H Flags
0 = Active edge on the associated bit has not occurred
1 = Active edge on the associated bit has occurred (an interrupt will
0 = Active edge on the associated bit has not occurred
1 = Active edge on the associated bit has occurred (an interrupt will
KWIFH5
KWIFJ5
5
0
5
0
occur if the associated enable bit is set).
occur if the associated enable bit is set)
I/O Ports With Key Wake-Up
KWIFH4
KWIFJ4
4
0
4
0
KWIFH3
KWIFJ3
3
0
3
0
KWIFH2
KWIFJ2
2
0
2
0
KWIFH1
KWIFJ1
1
0
1
0
KWIFH0
KWIFJ0
Bit 0
Bit 0
0
0
MOTOROLA
$002E
$002F
4-kwu