參數(shù)資料
型號(hào): P89CV51RC2FA,512
廠商: NXP Semiconductors
文件頁(yè)數(shù): 43/76頁(yè)
文件大小: 0K
描述: IC 80C51 MCU FLASH 32K 44-PLCC
產(chǎn)品培訓(xùn)模塊: Migrating from 8/16-Bit MCUs to 32-Bit ARMs
標(biāo)準(zhǔn)包裝: 26
系列: 89C
核心處理器: 8051
芯體尺寸: 8-位
速度: 40MHz
連通性: EBI/EMI,SPI,UART/USART
外圍設(shè)備: POR,PWM,WDT
輸入/輸出數(shù): 32
程序存儲(chǔ)器容量: 32KB(32K x 8)
程序存儲(chǔ)器類(lèi)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-LCC(J 形引線)
包裝: 管件
其它名稱(chēng): 568-4254-5
935284108512
P89CV51RC2FA
P89CV51RB2_RC2_RD2_3
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 03 — 25 August 2009
48 of 76
NXP Semiconductors
P89CV51RB2/RC2/RD2
80C51 with 1 kB RAM, SPI
6.9.1 PCA capture mode
To use one of the PCA modules in the Capture mode (Figure 21), 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 38.
CCAPMn - PCA modules compare/capture register (address CCAPM0 DAH,
CCAPM1 DBH, CCAPM2 DCH, CCAPM3 DDH, CCAPM4 DEH) bit description
Bit
Symbol
Description
Table 39.
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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