P89LV51RD2BA PHILIPS [NXP Semiconductors], P89LV51RD2BA Datasheet - Page 49

• Manufacturer Part Number: P89LV51RD2BA
• Description: 8-bit 80C51 3 V low power 64 kB Flash microcontroller with 1 kB RAM
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
9397 750 14342
Product data
Table 39:
Table 40:
Bit addressable; Reset value: 00H
Table 41:
Table 42:
Not bit addressable; Reset value: 00H
Table 43:
CPS1
0
0
1
1
Bit
7
6
5
4
3
2
1
0
Bit
7
6
5
4
Bit
Symbol
Bit
Symbol
CMOD - PCA counter mode register (address D9H) count pulse select
CCON - PCA counter control register (address 0D8H) bit allocation
CCON - PCA counter control register (address 0D8H) bit description
CCAPMn - PCA modules compare/capture register (address CCAPM0 0DAH,
CCAPM1 0DBH, CCAPM2 0DCH, CCAPM3 0DDH, CCAPM4 0DEH) bit alloc.
CCAPMn - PCA modules compare/capture register (address CCAPM0 0DAH,
CCAPM1 0DBH, CCAPM2 0DCH, CCAPM3 0DDH, CCAPM4 0DEH) bit desc.
Symbol
CF
CR
-
CCF4
CCF3
CCF2
CCF1
CCF0
Symbol
-
ECOMn
CAPPn
CAPNn
CF
7
7
-
Rev. 04 — 02 December 2004
CPS0
0
1
0
1
ECOMn
CR
6
6
Description
PCA Counter Overflow Flag. Set by hardware when the counter
rolls over. CF flags an interrupt if bit ECF in CMOD is set. CF may
be set by either hardware or software but can only be cleared by
software.
PCA Counter Run Control Bit. Set by software to turn the PCA
counter on. Must be cleared by software to turn the PCA counter
off.
Reserved for future use. Should be set to
PCA Module 4 Interrupt Flag. Set by hardware when a match or
capture occurs. Must be cleared by software.
PCA Module 3 Interrupt Flag. Set by hardware when a match or
capture occurs. Must be cleared by software.
PCA Module 2 Interrupt Flag. Set by hardware when a match or
capture occurs. Must be cleared by software.
PCA Module 1 Interrupt Flag. Set by hardware when a match or
capture occurs. Must be cleared by software.
PCA Module 0 Interrupt Flag. Set by hardware when a match or
capture occurs. Must be cleared by software.
Description
Reserved for future use. Should be set to
Enable Comparator. ECOMn = 1 enables the comparator function.
Capture Positive, CAPPn = 1 enables positive edge capture.
Capture Negative, CAPNn = 1 enables negative edge capture.
CAPPn
5
5
-
Select PCA input
0 Internal clock, f
1 Internal clock, f
2 Timer 0 overflow
3 External clock at ECI/P1.2 pin (max rate = f
P89LV51RB2/RC2/RD2
CAPNn
CCF4
4
4
8-bit microcontrollers with 80C51 core
osc
osc
CCF3
MATn
3
3
/ 6
/ 6
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
TOGn
CCF2
2
2
‘0’
‘0’
by user programs.
by user programs.
PWMn
CCF1
1
1
osc
ECCFn
/ 4)
CCF0
49 of 77
0
0