參數(shù)資料
型號(hào)： PIC17C43
英文描述： PIC17C42/42A/43/44/CR42A/CR43 Datasheet
中文描述： PIC17C42/42A/43/44/CR42A/CR43數(shù)據(jù)表
文件頁(yè)數(shù)： 20/71頁(yè)
文件大?。?/td> 1173K
代理商： PIC17C43
1996 Microchip Technology Inc.
DS30412C-page 27
PIC17C4X
5.9
Context Saving During Interrupts
During an interrupt, only the returned PC value is saved
on the stack. Typically, users may wish to save key reg-
isters during an interrupt; e.g. WREG, ALUSTA and the
BSR registers. This requires implementation in soft-
ware.
Example 5-1 shows the saving and restoring of infor-
mation for an interrupt service routine. The PUSH and
POP routines could either be in each interrupt service
routine or could be subroutines that were called.
Depending on the application, other registers may also
need to be saved, such as PCLATH.
EXAMPLE 5-1:
SAVING STATUS AND WREG IN RAM
;
; The addresses that are used to store the CPUSTA and WREG values
; must be in the data memory address range of 18h - 1Fh. Up to
; 8 locations can be saved and restored using
; the MOVFP instruction. This instruction neither affects the status
; bits, nor corrupts the WREG register.
;
PUSH
MOVFP
WREG, TEMP_W
; Save WREG
MOVFP
ALUSTA, TEMP_STATUS
; Save ALUSTA
MOVFP
BSR, TEMP_BSR
; Save BSR
ISR
:
; This is the interrupt service routine
:
POP
MOVFP
TEMP_W, WREG
; Restore WREG
MOVFP
TEMP_STATUS, ALUSTA
; Restore ALUSTA
MOVFP
TEMP_BSR, BSR
; Restore BSR
RETFIE
; Return from Interrupts enabled
相關(guān)PDF資料
PDF描述
PIC17C75X Micropower Precision Series Reference Family; Package: SOT; No of Pins: 3; Temperature Range: 0°C to +70°C
PIC17C7X
PIC17C44 Low Power 5V RS232 Dual Driver/Receiver with 0.1?μF Capacitors; Package: SO; No of Pins: 16; Temperature Range: -40?°C to 85?°C
PIC17C766T-33E/L 8-BIT, OTPROM, 33 MHz, RISC MICROCONTROLLER, PQCC84
PIC18C242-I/SO 8-BIT, OTPROM, 40 MHz, RISC MICROCONTROLLER, PDSO28
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PIC17C43/JW 功能描述:8位微控制器 -MCU 64KB 3328 RAM w/ECAN RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
PIC17C43-16/L 功能描述:8位微控制器 -MCU 8KB 454 RAM 33 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
PIC17C43-16/L 制造商:Microchip Technology Inc 功能描述:8BIT CMOS MCU SMD 17C43 PLCC44
PIC17C43-16/P 功能描述:8位微控制器 -MCU 8KB 454 RAM 33 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
PIC17C43-16/P 制造商:Microchip Technology Inc 功能描述:IC 8BIT CMOS MCU OTP 17C43 DIP40
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*