P87C51RA2 Philips Semiconductors, P87C51RA2 Datasheet - Page 38

• Manufacturer Part Number: P87C51RA2
• Description: 80C51 8-bit microcontroller family
• Manufacturer: Philips Semiconductors

Philips Semiconductors
2003 Jan 24
80C51 8-bit microcontroller family
with 512B/1KB RAM, low voltage (2.7 to 5.5 V), low power, high
speed (30/33 MHz)
WRITE TO
CCAPnL
0
WRITE TO
CCAPnH
1
RESET
ENABLE
––
ECOMn
CCAPnH
PCA TIMER/COUNTER
16–BIT COMPARATOR
CH
––
8KB/16KB/32KB/64KB OTP
CF
CAPPn
OVERFLOW
ENABLE
0
Figure 28. PCA High Speed Output Mode
ECOMn
CCAPnL
CR
CAPNn
CL
Figure 29. PCA PWM Mode
0
CAPPn
PCA TIMER/COUNTER
0
––
MATn
COMPARATOR
0
CCAPnH
CCAPnL
MATCH
8–BIT
CL
38
CAPNn
CCF4
0
TOGn
0
CL >= CCAPnL
CL < CCAPnL
MATn
(TO CCFn)
CCF3
PWMn
TOGn
CCF2
0
1
P87C51RA2/RB2/RC2/RD2
1
ECCFn
0
PWMn
CCF1
0
CCAPMn, n: 0..4
(DAH – DEH)
ECCFn
CCF0
SU01611
TOGGLE
CEXn
CCAPMn, n: 0..4
CCON
(D8H)
(DAH – DEH)
PCA INTERRUPT
SU01610
Product data
CEXn