參數(shù)資料
型號(hào): HT47C20L
廠商: Holtek Semiconductor Inc.
元件分類: 數(shù)學(xué)處理器
英文描述: 8-BIT MICROCONTROLLER
中文描述: 8位微控制器
文件頁數(shù): 23/55頁
文件大?。?/td> 341K
代理商: HT47C20L
HT47C20L
23
January 18, 2000
It is strongly recommended to load first the de-
sired value into TMRBL, TMRBH, TMRAL,
and TMRAH registers then turn on the related
timer/event counter for proper operation.
Because the initial value of TMRBL, TMRBH,
TMRAL and TMRAH are unknown.
If the timer/event counter is on, the TMRAH,
TMRAL, TMRBH and TMRBL cannot be read
or written to. Only when the timer/event coun-
ter is off and when the instruction MOV is
used could those four registers be read or writ-
ten to.
Example for Timer/event counter mode (disable interrupt):
clr tmrc
clr adcr.1
; set timer mode
clr intc1.4
; clear timer/event counter interrupt request flag
mov a, low (65536-1000)
; give timer initial value
mov tmrbl, a
; count 1000 time and then overflow
mov a, high (65536-1000)
mov tmrbh, a
mov a, 00110000b
; timer clock source=T1 and timer on
mov tmrc, a
p10:
clr wdt
snz intcl.4
; polling timer/event counter interrupt request flag
jmp p10
clr intcl.4
; clear timer/event counter interrupt request flag
; program contimue
相關(guān)PDF資料
PDF描述
HT47C20 8-BIT MICROCONTROLLER
HT47R20 8 位R-F 型OTP 單片機(jī)
HT48C05 Cost-Effective I/O Type 8-Bit MCU
HT48C06 Cost-Effective I/O Type 8-Bit MCU
HT48C10-1 8-Bit High Performance RISC-like Microcontroller Suitable for Multiple I/O Application(高性能、指令類似RISC的8位微控制器,用于多I/O接口設(shè)備)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HT47C20L_05 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:R-F Type Low Voltage 8-Bit Mask MCU
HT47M50 制造商:NTE Electronics 功能描述:
HT47R10A-1 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:R-F Type 8-Bit MCU
HT47R20 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:8 位R-F 型OTP 單片機(jī)
HT47R20A-1 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:R-F Type 8-Bit MCU