P89LV51RD2BBC NXP Semiconductors, P89LV51RD2BBC Datasheet - Page 50

• 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
Table 42.
P89LV51RB2_RC2_RD2_5
Product data sheet
ECOMn
0
X
X
X
1
1
1
1
CAPPn
0
1
0
1
0
0
0
0
PCA module modes (CCAPMn register)
6.9.1 PCA capture mode
CAPNn
0
0
1
1
0
0
0
0
Table 41.
To use one of the PCA modules in the capture mode
CCAPM bits CAPNn and CAPPn for that module must be set. The external CEX input for
the module (on port 1) is sampled for a transition. When a valid transition occurs the PCA
hardware loads the value of the PCA counter registers (CH and CL) into the module’s
capture registers (CCAPnL and CCAPnH).
Bit
3
2
1
0
MATn
0
0
0
0
1
1
0
1
CCAPMn - PCA modules compare/capture register (address CCAPM0: 0DAH,
CCAPM1: 0DBH, CCAPM2: 0DCH, CCAPM3: 0DDH, CCAPM4: 0DEH) bit
descriptions
Symbol
MATn
TOGn
PWMn
ECCFn
TOGn
0
0
0
0
0
1
0
X
Rev. 05 — 15 December 2009
…continued
Description
Match. When MATn = 1 a match of the PCA counter with this module’s
compare/capture register causes the CCFn bit in CCON to be set,
flagging an interrupt.
Toggle. When TOGn = 1, a match of the PCA counter with this
module’s compare/capture register causes the CEXn pin to toggle.
Pulse Width Modulation mode. PWMn = 1 enables the CEXn pin to be
used as a pulse-width modulated output.
Enable CCF Interrupt. Enables compare/capture flag CCFn in the
CCON register to generate an interrupt.
PWMn
0
0
0
0
0
0
1
0
ECCFn
0
X
X
X
X
X
0
X
P89LV51RB2/RC2/RD2
Module function
no operation
16-bit capture by a positive-edge trigger on
CEXn
16-bit capture by a negative-edge trigger on
CEXn
16-bit capture by any transition on CEXn
16-bit software timer
16-bit high-speed output
8-bit PWM
Watchdog timer
8-bit microcontrollers with 80C51 core
(Figure
22) either one or both of the
© NXP B.V. 2009. All rights reserved.
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