P89LV51RD2BBC NXP Semiconductors, P89LV51RD2BBC Datasheet - Page 49

• Manufacturer Part Number: P89LV51RD2BBC
• Description: MCU 8-Bit 89LV 80C51 CISC 64KB Flash 3.3V 44-Pin TQFP Tray
• Manufacturer: NXP Semiconductors

Specifications of P89LV51RD2BBC

• Package: 44TQFP
• Device Core: 80C51
• Family Name: 89LV
• Maximum Speed: 40 MHz
• Ram Size: 1 KB
• Program Memory Size: 64 KB
• Operating Supply Voltage: 3.3 V
• Data Bus Width: 8 Bit
• Program Memory Type: Flash
• Number Of Programmable I/os: 32
• Interface Type: SPI/UART
• Operating Temperature: 0 to 70 °C
• Number Of Timers: 3

NXP Semiconductors
P89LV51RB2_RC2_RD2_5
Product data sheet
Table 37.
Table 38.
Bit addressable; reset value: 00H.
Table 39.
Table 40.
Not bit addressable; reset value: 00H.
Table 41.
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 descriptions
CCAPMn - PCA modules compare/capture register (address CCAPM0: 0DAH,
CCAPM1: 0DBH, CCAPM2: 0DCH, CCAPM3: 0DDH, CCAPM4: 0DEH) bit
allocation
CCAPMn - PCA modules compare/capture register (address CCAPM0: 0DAH,
CCAPM1: 0DBH, CCAPM2: 0DCH, CCAPM3: 0DDH, CCAPM4: 0DEH) bit
descriptions
Symbol
CF
CR
-
CCF4
CCF3
CCF2
CCF1
CCF0
Symbol
-
ECOMn
CAPPn
CAPNn
CF
7
7
-
CPS0
0
1
0
1
Rev. 05 — 15 December 2009
ECOMn
CR
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.
6
Description
Reserved for future use. Should be set to ‘0’ by user programs.
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 (maximum rate = f
P89LV51RB2/RC2/RD2
CAPNn
CCF4
4
4
8-bit microcontrollers with 80C51 core
osc
osc
CCF3
MATn
/ 6
/ 2
3
3
CCF2
‘0’
TOGn
2
2
by user programs.
© NXP B.V. 2009. All rights reserved.
PWMn
CCF1
1
1
ECCFn
osc
CCF0
49 of 76
0
0
/ 4)