83C754 Datasheet, PDF (15/26 Pages) NXP Semiconductors – 80C51 8-bit microcontroller family 4K/256 OTP/ROM, DAC, comparator, UART, reference

Philips Semiconductors
80C51 8-bit microcontroller family
4K/256 OTP/ROM, DAC, comparator, UART, reference
Preliminary specification
83C754/87C754
CCAPH
ENABLE
OVERFLOW
CCAPL
0
8–BIT
COMPARATOR
CL < CCAPL
CL >= CCAPL
1
CL
PCA TIMER/COUNTER
CEX
––
ECOM CAPP
CAPN
MAT
TOG
PWM
ECCF
CCAPM
0
0
0
0
0
Figure 15. PCA PWM Mode
SU00681A
WRITE TO
CCAPH
RESET
WRITE TO
CCAPL
0
1
ENABLE
CIDL
WDTE
––
––
CCAPH
CCAPL
16–BIT COMPARATOR
MATCH
––
CPS1
CPS0
ECF
CMOD
(D9H)
RESET
CH
CL
PCA TIMER/COUNTER
––
ECOM CAPP
CAPN
MAT
TOG
PWM
ECCF
CCAPM
(DEH)
0
0
1
X
0
X
Figure 16. PCA Watchdog Timer
SU00682A
1998 Apr 23
15