參數資料
型號: 8XC51RD
廠商: NXP Semiconductors N.V.
英文描述: 8-bit CMOS (low voltage, low power and high speed) microcontroller families
中文描述: 8位CMOS(低電壓,低功耗和高速)微控制器系列
文件頁數: 32/55頁
文件大?。?/td> 361K
代理商: 8XC51RD
Philips Semiconductors
Preliminary specification
8XC52/54/58/80C32
8XC51FA/FB/FC/80C51FA
8XC51RA+/RB+/RC+/RD+/80C51RA+
8-bit CMOS (low voltage, low power
and high speed) microcontroller families
1997 Dec 01
206
(8XC51FX and 8XC51RX+ ONLY)
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 26. PCA Watchdog Timer Initialization Code
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相關代理商/技術參數
參數描述
8XC51RD+ 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:80C51 8-bit microcontroller family 8K-4K/256-1K OTP/ROM/ROMless, low voltage (2.7V-5.5V), low power, high speed (33 MHz)
8XC51SL 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:LOW VOLTAGE 8XC51SL KEYBOARD CONTROLLER
8XC51SL.LOWVOLTAGE8XC51SL 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:KEYBOARD CONTROLLER
8XC51SL/LOWVOLTAGE8XC51SL 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:8XC51SL. LOW VOLTAGE 8XC51SL - KEYBOARD CONTROLLER
8XC51SLLOWVOLTAGE8XC51SL 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:KEYBOARD CONTROLLER