Intel 8XC251SP User Manual
9-13
PROGRAMMABLE COUNTER ARRAY
Figure 9-7. CMOD: PCA Timer/Counter Mode Register
CMOD
Address:
S:D9H
Reset State:
00XX X000B
7
0
CIDL
WDTE
—
—
—
CPS1
CPS0
ECF
Bit
Number
Bit
Mnemonic
Function
7
CIDL
PCA Timer/Counter Idle Control:
CIDL = 1 disables the PCA timer/counter during idle mode. CIDL = 0
allows the PCA timer/counter to run during idle mode.
allows the PCA timer/counter to run during idle mode.
6
WDTE
Watchdog Timer Enable:
WDTE = 1 enables the watchdog timer output on PCA module 4.
WDTE = 0 disables the PCA watchdog timer output.
WDTE = 0 disables the PCA watchdog timer output.
5:3
—
Reserved:
The values read from these bits are indeterminate. Write zeros to these
bits.
bits.
2:1
CPS1:0
PCA Timer/Counter Input Select:
CPS1 CPS0
0
0
F
OSC
/12
0
1
F
OSC
/4
1
0
Timer 0 overflow
1
1
External clock at ECI pin (maximum rate = F
OSC
/8 )
0
ECF
PCA Timer/Counter Interrupt Enable:
ECF = 1 enables the CF bit in the CCON register to generate an interrupt
request.
request.