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參數資料
型號: TS80C31X2-LLED
廠商: ATMEL CORP
元件分類: 微控制器/微處理器
英文描述: 8-bit CMOS Microcontroller ROMless
中文描述: 8-BIT, 30 MHz, MICROCONTROLLER, PQFP44
封裝: 1.40 MM HEIGHT, VQFP-44
文件頁數: 11/40頁
文件大?。?/td> 484K
代理商: TS80C31X2-LLED
Rev. A - Mar. 19, 1999
11
Preliminary
TS80C31X2
ASSEMBLY LANGUAGE
; Block move using dual data pointers
; Destroys DPTR0, DPTR1, A and PSW
; note: DPS exits opposite of entry state
; unless an extra INC AUXR1 is added
;
00A2
AUXR1 EQU 0A2H
;
0000 909000MOV DPTR,#SOURCE
0003 05A2 INC
AUXR1
0005 90A000 MOV DPTR,#DEST
0008
LOOP:
0008 05A2 INC
AUXR1
000A E0
MOVX A,@DPTR
000B A3
INC
DPTR
000C 05A2 INC
AUXR1
000E F0
MOVX @DPTR,A
000F A3
INC
DPTR
0010 70F6 JNZ
LOOP
0012 05A2 INC
AUXR1
; address of SOURCE
; switch data pointers
; address of DEST
; switch data pointers
; get a byte from SOURCE
; increment SOURCE address
; switch data pointers
; write the byte to DEST
; increment DEST address
; check for 0 terminator
; (optional) restore DPS
INC is a short (2 bytes) and fast (12 clocks) way to manipulate the DPS bit in the AUXR1 SFR. However,
note that the INC instruction does not directly force the DPS bit to a particular state, but simply toggles it.
In simple routines, such as the block move example, only the fact that DPS is toggled in the proper sequence
matters, not its actual value. In other words, the block move routine works the same whether DPS is '0' or '1'
on entry. Observe that without the last instruction (INC AUXR1), the routine will exit with DPS in the
opposite state.
相關PDF資料
PDF描述
TS80C31X2-LLER 8-bit CMOS Microcontroller ROMless
TS80C31X2-MCAB 8-bit CMOS Microcontroller ROMless
TS80C31X2-MCAD 8-bit CMOS Microcontroller ROMless
TS80C31X2-MCAR 8-bit CMOS Microcontroller ROMless
TS80C31X2-MCBB 8-bit CMOS Microcontroller ROMless
相關代理商/技術參數
參數描述
TS80C31X2-LLER 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit CMOS Microcontroller ROMless
TS80C31X2-MCA 功能描述:IC MCU 8BIT 40/20MHZ 40-DIP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:80C 標準包裝:9 系列:87C 核心處理器:8051 芯體尺寸:8-位 速度:40/20MHz 連通性:UART/USART 外圍設備:POR,WDT 輸入/輸出數:32 程序存儲器容量:32KB(32K x 8) 程序存儲器類型:OTP EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數據轉換器:- 振蕩器型:內部 工作溫度:0°C ~ 70°C 封裝/外殼:40-DIP(0.600",15.24mm) 包裝:管件
TS80C31X2-MCAB 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit CMOS Microcontroller ROMless
TS80C31X2-MCAD 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:8-bit CMOS Microcontroller 0-60 MHz
TS80C31X2-MCAR 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit CMOS Microcontroller ROMless
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