P89CV51RC2FA NXP Semiconductors, P89CV51RC2FA Datasheet - Page 48

• Manufacturer Part Number: P89CV51RC2FA
• Description: MCU 8-Bit 89C 80C51 CISC 32KB Flash 5V 44-Pin PLCC Tube
• Manufacturer: NXP Semiconductors

Specifications of P89CV51RC2FA

• Package: 44PLCC
• Device Core: 80C51
• Family Name: 89C
• Maximum Speed: 40 MHz
• Operating Supply Voltage: 5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 32
• Interface Type: SPI/UART
• Number Of Timers: 3
• Ram Size: 1 KB
• Program Memory Size: 32 KB
• Program Memory Type: Flash
• Operating Temperature: -40 to 85 °C

NXP Semiconductors
Table 39.
P89CV51RB2_RC2_RD2_3
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 38.
To use one of the PCA modules in the Capture mode
CCAPM bits CAPN and CAPP 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
2
1
0
MATn
0
0
0
0
1
1
0
1
CCAPMn - PCA modules compare/capture register (address CCAPM0 DAH,
CCAPM1 DBH, CCAPM2 DCH, CCAPM3 DDH, CCAPM4 DEH) bit description
Symbol
TOGn
PWMn
ECCFn
TOGn
0
0
0
0
0
1
0
X
Rev. 03 — 25 August 2009
Description
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
P89CV51RB2/RC2/RD2
no operation
16-bit capture by a positive-edge trigger on
16-bit capture by a negative-edge trigger on
16-bit capture by any transition on CEXn
16-bit software timer
16-bit high-speed output
8-bit PWM
watchdog timer
Module function
CEXn
CEXn
(Figure
21), either one or both of the
80C51 with 1 kB RAM, SPI
© NXP B.V. 2009. All rights reserved.
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