Rainbow Electronics T89C51CC02 - Manual (Page 110)

110 Rev.A - May 17, 2001
Preliminary
T89C51CC02
CCON (S:D8h)
PCA Counter Control Register
Reset Value = 00xx xx00b
Figure 111. CCON Register
7 6 5 4 3 2 1 0
CF CR - CCF1 CCF0
Bit Number Bit Mnemonic Description
7 CF
PCA Timer/Counter Overflow flag
Set by hardware when the PCA Timer/Counter rolls over. This generates a PCA interrupt request if
the ECF bit in CMOD register is set.
Must be cleared by software.
6 CR
PCA Timer/Counter Run Control bit
Clear to turn the PCA Timer/Counter off.
Set to turn the PCA Timer/Counter on.
5-2 -
Reserved
The value read from these bits are indeterminate. Do not set these bits.
1 CCF1
PCA Module 1 Compare/Capture flag
Set by hardware when a match or capture occurs. This generates a PCA interrupt request if the ECCF
1 bit in CCAPM 1 register is set.
Must be cleared by software.
0 CCF0
PCA Module 0 Compare/Capture flag
Set by hardware when a match or capture occurs. This generates a PCA interrupt request if the ECCF
0 bit in CCAPM 0 register is set.
Must be cleared by software.