P89LV51RD2BBC NXP Semiconductors, P89LV51RD2BBC Datasheet - Page 51

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P89LV51RD2BBC

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

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

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NXP Semiconductors
P89LV51RB2_RC2_RD2_5
Product data sheet
Fig 22. PCA capture mode
CEXn
6.9.2 16-bit software timer mode
CF
-
If the CCFn bit for the module in the CCON SFR and the ECCFn bit in the CCAPMn SFR
are set then an interrupt will be generated.
The PCA modules can be used as software timers
and MATn bits in the modules CCAPMn register. The PCA timer will be compared to the
module’s capture registers and when a match occurs an interrupt will occur if the CCFn
(CCON SFR) and the ECCFn (CCAPMn SFR) bits for the module are both set.
ECOMn
CR
0
CAPPn
-
CAPNn
CCF4
Rev. 05 — 15 December 2009
MATn
CCF3
(to CCFn)
0
capture
TOGn
CCF2
0
P89LV51RB2/RC2/RD2
PWMn
CCF1
0
8-bit microcontrollers with 80C51 core
(Figure
ECCFn
CCF0
23) by setting both the ECOMn
CCAPMn, n = 0 to 4
(DAH to DEH)
CCON
(D8H)
CCAPnH CCAPnL
PCA timer/counter
CH
PCA
interrupt
002aaa538
© NXP B.V. 2009. All rights reserved.
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