80C575 Datasheet, PDF (11/40 Pages) NXP Semiconductors – 80C51 8-bit microcontroller family 8K/256 OTP/ROM/ROMless, 4 comparator, failure detect circuitry, watchdog timer

Philips Semiconductors
80C51 8-bit microcontroller family
8K/256 OTP/ROM/ROMless, 4 comparator, failure detect circuitry, watchdog timer
Product specification
80C575/83C575/
87C575
OSC/12
OSC/4
TIMER 0
OVERFLOW
EXTERNAL INPUT
(P1.2/ECI)
IDLE
PCA TIMER/COUNTER
TO PCA
MODULES
CH
CL
16–BIT UP COUNTER
OVERFLOW
INTERRUPT
00
01
10 DECODE
11
CIDL WDTE
––
––
––
CPS1
CPS0
ECF
CMOD
(D9H)
CF
CR
––
CCF4
CCF3
CCF2
CCF1
CCF0
CCON
(D8H)
Figure 3. PCA Timer/Counter
SU00033
CF
CR
––
CCF4
CCF3
CCF2
CCF1
CCF0
CCON
(D8H)
MODULE 0
MODULE 1
MODULE 2
MODULE 3
MODULE 4
CMOD.0 ECF
CCAPMn.0 ECCFn
Figure 4. PCA Interrupt System
IE.6
IE.7
EC
EA
TO
INTERRUPT
PRIORITY
DECODER
SU00034
1998 May 01
11