p89c668hbbd NXP Semiconductors, p89c668hbbd Datasheet - Page 54

• Manufacturer Part Number: p89c668hbbd
• Description: 80c51 8-bit Flash Microcontroller Family
• Manufacturer: NXP Semiconductors

Philips Semiconductors
2002 Oct 28
OSC/12 (12 CLOCK MODE)
80C51 8-bit Flash microcontroller family
16KB/32KB/64KB ISP/IAP Flash with 512B/1KB/2KB/8KB RAM
OSC/4 (12 CLOCK MODE)
OSC/6 (6 CLOCK MODE)
OSC/2 (6 CLOCK MODE)
EXTERNAL INPUT
IDLE
TIMER 0 OVERFLOW
(P1.2/ECI)
PCA TIMER/COUNTER
MODULE 0
MODULE 1
MODULE 2
MODULE 3
MODULE 4
OR
OR
CMOD.0
ECF
CIDL
CF
00
01
10
11
Figure 42. PCA Interrupt System
WDTE
CCAPMn.0
Figure 41. PCA Timer/Counter
CF
CR
DECODE
CR
––
––
ECCFn
54
CCF4
––
––
CCF4
CCF3
––
16–BIT UP COUNTER
P89C660/P89C662/P89C664/
CH
CCF3
CCF2
CPS1
CCF2
CCF1
CPS0
IE.6
CL
EC
OVERFLOW
CCF1
CCF0
ECF
IE.7
EA
MODULES
TO PCA
CMOD
CCON
(C1H)
(C0H)
CCF0
TO
INTERRUPT
PRIORITY
DECODER
P89C668
INTERRUPT
CCON
(C0H)
SU01097
SU01256
Product data