參數(shù)資料
型號(hào): P89V51RB2FA,529
廠(chǎng)商: NXP Semiconductors
文件頁(yè)數(shù): 47/80頁(yè)
文件大?。?/td> 0K
描述: IC 80C51 MCU FLASH 16K 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: 156
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(shè)備: 欠壓檢測(cè)/復(fù)位,POR,PWM,WDT
輸入/輸出數(shù): 32
程序存儲(chǔ)器容量: 16KB(16K 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(xiàn))
包裝: 管件
產(chǎn)品目錄頁(yè)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(chēng): 568-2427-5
935278706529
P89V51RB2FA-S
P89V51RB2_RC2_RD2_5
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 05 — 12 November 2009
51 of 80
NXP Semiconductors
P89V51RB2/RC2/RD2
8-bit microcontrollers with 80C51 core
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.
6.9.2 16-bit software timer mode
The PCA modules can be used as software timers (Figure 24) by setting both the ECOM
and MAT 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.
Fig 23. PCA capture mode
002aaa538
CF
CR
-
CCF4
CCF3
CCF2
CCF1
CCF0
CCON
(D8H)
PCA
interrupt
PCA timer/counter
-
ECOMn
0
000
CAPPn
CAPNn
MATn
TOGn
PWMn
ECCFn
CCAPMn, n = 0 to 4
(DAH to DEH)
CH
CL
CCAPnH CCAPnL
capture
(to CCFn)
CEXn
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