Datasheet

I/O Ports with Key Wake-up
Technical Data MC68HC912DT128A — Rev 4.0
152 I/O Ports with Key Wake-up MOTOROLA
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
0 = Active edge on the associated bit has not occurred
1 = Active edge on the associated bit has occurred (an interrupt will
occur if the associated enable bit is set).
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
occur if the associated enable bit is set)
KWIFJ — Key Wake-up Port J Flag Register $002E
Bit 7654321Bit 0
KWIFJ7 KWIFJ6 KWIFJ5 KWIFJ4 KWIFJ3 KWIFJ2 KWIFJ1 KWIFJ0
RESET: 00000000
KWIFH — Key Wake-up Port H Flag Register $002F
Bit 7654321Bit 0
KWIFH7 KWIFH6 KWIFH5 KWIFH4 KWIFH3 KWIFH2 KWIFH1 KWIFH0
RESET: 00000000
Frees
cale Semiconductor,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
nc...