參數(shù)資料
型號(hào): P89C51RC2HXX
廠商: NXP Semiconductors N.V.
元件分類(lèi): 8位微控制器
英文描述: 80C51 8-bit Flash microcontroller family
中文描述: 80C51的8位閃存微控制器系列
文件頁(yè)數(shù): 41/68頁(yè)
文件大?。?/td> 404K
代理商: P89C51RC2HXX
Philips Semiconductors
Preliminary data
P89C51RA2/RB2/RC2/RD2xx
80C51 8-bit Flash microcontroller family
8KB/16KB/32KB/64KB ISP/IAP Flash with 512B/512B/512B/1KB RAM
2002 Jul 18
41
INIT_WATCHDOG:
MOV CCAPM4, #4CH ; Module 4 in compare mode
MOV CCAP4L, #0FFH ; Write to low byte first
MOV CCAP4H, #0FFH ; Before PCA timer counts up to
; FFFF Hex, these compare values
; must be changed
ORL CMOD, #40H ; Set the WDTE bit to enable the
; watchdog timer without changing
; the other bits in CMOD
;
;********************************************************************
;
; Main program goes here, but CALL WATCHDOG periodically.
;
;********************************************************************
;
WATCHDOG:
CLR EA ; Hold off interrupts
MOV CCAP4L, #00 ; Next compare value is within
MOV CCAP4H, CH ; 255 counts of the current PCA
SETB EA ; timer value
RET
Figure 37. PCA Watchdog Timer Initialization Code
相關(guān)PDF資料
PDF描述
P89C51UBPN 80C51 8-bit microcontroller family 4K/8K/16K/32K Flash
P89C51UBAA-T 8-BIT MICROCONTROLLER
P89C51BA MICROCONTROLLER|8-BIT|8051 CPU|CMOS|LDCC|44PIN|PLASTIC
P89C51BBD MICROCONTROLLER|8-BIT|8051 CPU|CMOS|QFP|44PIN|PLASTIC
P89C51BP MICROCONTROLLER|8-BIT|8051 CPU|CMOS|DIP|40PIN|PLASTIC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
P89C51RCIN 制造商: 功能描述: 制造商:NA 功能描述: 制造商:PHILS 功能描述: 制造商:undefined 功能描述:
P89C51RD+ 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:80C51 8-bit Flash microcontroller family 32K/64K ISP FLASH with 512.1K RAM
P89C51RD+IA 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:80C51 8-bit Flash microcontroller family 32K/64K ISP FLASH with 512.1K RAM
P89C51RD+IA-T 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:8-Bit Microcontroller
P89C51RD+IB 制造商:NXP Semiconductors 功能描述: 制造商:Philips Semiconductor 功能描述: