P87C552 NXP Semiconductors, P87C552 Datasheet - Page 30

• Manufacturer Part Number: P87C552
• Description: The 87C552 Single-Chip 8-Bit Microcontroller is manufactured in anadvanced CMOS process and is a derivative of the 80C51microcontroller family
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 3.
2003 Apr 01
External interrupt 0
SIO1 (I
ADC completion
Timer 0 overflow
T2 capture 0
T2 compare 0
External interrupt 1
T2 capture 1
T2 compare 1
Timer 1 overflow
T2 capture 2
T2 compare 2
SIO0 (UART)
T2 capture 3
Timer T2 overflow
80C51 8-bit microcontroller
8K/256 OTP, 8 channel 10 bit A/D, I
capture/compare, high I/O, low voltage (2.7 V to 5.5 V), low power
SOURCE
2
C)
Interrupt Priority Structure
IP1H (F7H)
IP1 (F8H)
NAME
ADC
CM0
CM1
CM2
CT0
CT1
CT2
CT3
X0
S1
T0
X1
T1
S0
T2
BIT
IP1.7
IP1.6
IP1.5
IP1.4
IP1.3
IP1.2
IP1.1
IP1.0
BIT
IP1H.7
IP1H.6
IP1H.5
IP1H.4
IP1H.3
IP1H.2
IP1H.1
IP1H.0
(MSB)
(MSB)
PT2H
PT2
7
7
PRIORITY WITHIN LEVEL
PCM2H
PCM2
SYMBOL
PT2
PCM2
PCM1
PCM0
PCT3
PCT2
PCT1
PCT0
SYMBOL
PT2H
PCM2H
PCM1H
PCM0H
PCT3H
PCT2H
PCT1H
PCT0H
Figure 31. Interrupt Priority Register High (IP1H)
6
6
(highest)
Figure 30. Interrupt Priority Register (IP1)
(lowest)
2
PCM1H
PCM1
C, PWM,
5
5
FUNCTION
T2 overflow interrupt(s) priority level
T2 comparator 2 interrupt priority level
T2 comparator 1 interrupt priority level
T2 comparator 0 interrupt priority level
T2 capture register 3 interrupt priority level
T2 capture register 2 interrupt priority level
T2 capture register 1 interrupt priority level
T2 capture register 0 interrupt priority level
FUNCTION
T2 overflow interrupt(s) priority level high
T2 comparator 2 interrupt priority level high
T2 comparator 1 interrupt priority level high
T2 comparator 0 interrupt priority level high
T2 capture register 3 interrupt priority level high
T2 capture register 2 interrupt priority level high
T2 capture register 1 interrupt priority level high
T2 capture register 0 interrupt priority level high
PCM0H
PCM0
4
4
30
PCT3H
PCT3
3
3
Table 4.
External interrupt 0
Timer 0 overflow
External interrupt 1
Timer 1 overflow
SIO0 (UART)
SIO1 (I
T2 capture 0
T2 capture 1
T2 capture 2
T2 capture 3
ADC completion
T2 compare 0
T2 compare 1
T2 compare 2
T2 overflow
PCT2H
PCT2
SOURCE
2
2
2
C)
Interrupt Vector Addresses
PCT1H
PCT1
1
1
PCT0H
PCT0
(LSB)
(LSB)
SU00764
SU00984
0
0
NAME
ADC
CM0
CM1
CM2
CT0
CT1
CT2
CT3
X0
T0
X1
T1
S0
S1
T2
VECTOR ADDRESS
000BH
001BH
002BH
003BH
004BH
005BH
006BH
0003H
0013H
0023H
0033H
0043H
0053H
0063H
0073H
P87C552
Product data