P87C554 NXP Semiconductors, P87C554 Datasheet - Page 21

• Manufacturer Part Number: P87C554
• Description: The P87C554 Single-Chip 8-Bit Microcontroller is manufactured inan advanced CMOS process and is a derivative of the 80C51microcontroller family
• Manufacturer: NXP Semiconductors

Philips Semiconductors
2002 Mar 25
80C51 8-bit microcontroller – 12 clock operation
16K/512 OTP/RAM, 8 channel 10-bit A/D, I
capture/compare, high I/O
TM2IR (C8H)
STE (EEH)
IP1 (F8H)
Figure 17. Interrupt Flag Register (TM2IR) and Timer T2 Interrupt Priority Register (IP1)
BIT
STE.7
STE.6
STE.5
STE.4
STE.3
STE.2
STE.1
STE.0
BIT
TM2IR.7
TM2IR.6
TM2IR.5
TM2IR.4
TM2IR.3
TM2IR.2
TM2IR.1
TM2IR.0
BIT
IP1.7
IP1.6
IP1.5
IP1.4
IP1.3
IP1.2
IP1.1
IP1.0
(MSB)
(MSB)
(MSB)
TG47
T2OV
PT2
7
7
7
PCM2
TG46
CMI2
SYMBOL
TG47
TG46
SP45
SP44
SP43
SP42
SP41
SP40
SYMBOL
T2OV
CMI2
CMI1
CMI0
CTI3
CTI2
CTI1
CTI0
SYMBOL
PT2
PCM2
PCM1
PCM0
PCT3
PCT2
PCT1
PCT0
6
6
6
Timer 2 Interrupt Priority Register (IP1)
Figure 16. Set Enable Register (STE)
PCM1
SP45
CMI1
Interrupt Flag Register (TM2IR)
5
5
5
FUNCTION
Toggle flip-flops
Toggle flip-flops
If “1” then P4.5 is set on a match between CM0 and Timer T2
If “1” then P4.4 is set on a match between CM0 and Timer T2
If “1” then P4.3 is set on a match between CM0 and Timer T2
If “1” then P4.2 is set on a match between CM0 and Timer T2
If “1” then P4.1 is set on a match between CM0 and Timer T2
If “1” then P4.0 is set on a match between CM0 and Timer T2
FUNCTION
Timer T2 16-bit overflow interrupt flag
CM2 interrupt flag
CM1 interrupt flag
CM0 interrupt flag
CT3 interrupt flag
CT2 interrupt flag
CT1 interrupt flag
CT0 interrupt flag
FUNCTION
Timer T2 overflow interrupt(s) priority level
Timer T2 comparator 2 interrupt priority level
Timer T2 comparator 1 interrupt priority level
Timer T2 comparator 0 interrupt priority level
Timer T2 capture register 3 interrupt priority level
Timer T2 capture register 2 interrupt priority level
Timer T2 capture register 1 interrupt priority level
Timer T2 capture register 0 interrupt priority level
2
PCM0
C, PWM,
SP44
CMI0
4
4
4
19
PCT3
SP43
CTI3
3
3
3
SP42
PCT2
CTI2
2
2
2
PCT1
SP41
CTI1
1
1
1
(LSB)
(LSB)
PCT0
(LSB)
SP40
CTI0
0
0
0
Reset Value = 00H
Reset Value = 00H
Reset Value = C0H
P87C554
Product data
SU01088
SU01087