mc68hc908jw32 Freescale Semiconductor, Inc, mc68hc908jw32 Datasheet - Page 162

• Manufacturer Part Number: mc68hc908jw32
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

PS2 Clock Generator (PS2CLK)
12.3 PS2 Clock Generator Control and Status Registers
PSTATUS — Port Status Flag
PS2IF — PS2 Interrupt Flag.
162
This read only bit reflects the port status when the module is enabled. Reset clears this bit.
This flag is set when PS2 interrupt is trigger by the interrupt generator. Writing one to this bit clears the
flag. Reset clears this flag.
1 = Port status is logic high
0 = Port status is logic low
1 = CPU interrupt is pending
0 = CPU interrupt is not pending
Figure 12-3. PS2 Clock Generator Control and Status Registers (PS2CSR)
Address:
CLK
Output
Interrupt
Generator
Reset:
Read: PSTATUS
Write:
$0019
Bit 7
CLKEN = 1
0
Figure 12-2. Clock Generator Output Waveform.
= Unimplemented
PS2IF
6
0
MC68HC908JW32 Data Sheet, Rev. 5
CPU
Interrupt
Trigger
PRE
5
0
CSEL1
4
0
CSEL0
R
3
0
CLKEN = 0
= Reserved
PS2IEN
2
0
CLKEN
1
0
Freescale Semiconductor
PS2EN
Bit 0
0