參數(shù)資料
型號: P89V51RC2FBC,557
廠商: NXP Semiconductors
文件頁數(shù): 46/80頁
文件大?。?/td> 0K
描述: IC 80C51 MCU FLASH 32K 44-TQFP
產(chǎn)品培訓模塊: Migrating from 8/16-Bit MCUs to 32-Bit ARMs
標準包裝: 800
系列: 89V
核心處理器: 8051
芯體尺寸: 8-位
速度: 40MHz
連通性: SPI,UART/USART
外圍設備: 欠壓檢測/復位,POR,PWM,WDT
輸入/輸出數(shù): 32
程序存儲器容量: 32KB(32K x 8)
程序存儲器類型: 閃存
RAM 容量: 1K x 8
電壓 - 電源 (Vcc/Vdd): 4.5 V ~ 5.5 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 44-TQFP
包裝: 托盤
產(chǎn)品目錄頁面: 706 (CN2011-ZH PDF)
配用: 622-1017-ND - BOARD 44-ZIF PLCC SOCKET
622-1001-ND - USB IN-CIRCUIT PROG 80C51ISP
其它名稱: 568-2429
935277725557
P89V51RC2FBC
P89V51RB2_RC2_RD2_5
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 05 — 12 November 2009
50 of 80
NXP Semiconductors
P89V51RB2/RC2/RD2
8-bit microcontrollers with 80C51 core
6.9.1 PCA capture mode
To use one of the PCA modules in the capture mode (Figure 23) either one or both of the
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).
2
TOGn
Toggle. When TOGn = 1, a match of the PCA counter with this
module’s compare/capture register causes the CEXn pin to toggle.
1
PWMn
Pulse Width Modulation mode. PWMn = 1 enables the CEXn pin to be
used as a pulse width modulated output.
0
ECCFn
Enable CCF Interrupt. Enables compare/capture ag CCFn in the
CCON register to generate an interrupt.
Table 41.
CCAPMn - PCA modules compare/capture register (address CCAPM0 0DAH,
CCAPM1 0DBH, CCAPM2 0DCH, CCAPM3 0DDH, CCAPM4 0DEH) bit description
Bit
Symbol
Description
Table 42.
PCA module modes (CCAPMn register)
ECOMn
CAPPn
CAPNn
MATn
TOGn
PWMn
ECCFn
Module function
0
no operation
x
1
0
x
16-bit capture by a positive-edge trigger on
CEXn
x
0
1
0
x
16-bit capture by a negative-edge trigger on
CEXn
x
1
0
x
16-bit capture by any transition on CEXn
1
0
1
0
x
16-bit software timer
1
0
1
0
x
16-bit high-speed output
1
0
1
0
8-bit PWM
1
0
1
x
0
x
Watchdog timer
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