參數(shù)資料
型號(hào): AT89C51RB2-SLSIM
廠商: Atmel
文件頁數(shù): 42/127頁
文件大?。?/td> 0K
描述: IC 8051 MCU FLASH 16K 44PLCC
標(biāo)準(zhǔn)包裝: 27
系列: 89C
核心處理器: 8051
芯體尺寸: 8-位
速度: 60MHz
連通性: SPI,UART/USART
外圍設(shè)備: POR,PWM,WDT
輸入/輸出數(shù): 32
程序存儲(chǔ)器容量: 16KB(16K x 8)
程序存儲(chǔ)器類型: 閃存
RAM 容量: 1.25K x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 5.5 V
振蕩器型: 外部
工作溫度: -40°C ~ 85°C
封裝/外殼: 44-LCC(J 形引線)
包裝: 管件
配用: AT89STK-11-ND - KIT STARTER FOR AT89C51RX2
21
AT89C51RB2/RC2
4180E–8051–10/06
Table 17. AUXR1 register
AUXR1- Auxiliary Register 1(0A2h)
Reset Value = XXXX XX0X0b
Not bit addressable
Note:
1. Bit 2 stuck at 0; this allows using INC AUXR1 to toggle DPS without changing GF3.
ASSEMBLY LANGUAGE
; Block move using dual data pointers
; Modifies 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 ; address of SOURCE
0003 05A2 INC AUXR1 ; switch data pointers
0005 90A000 MOV DPTR,#DEST ; address of DEST
0008
LOOP:
0008 05A2 INC AUXR1 ; switch data pointers
000A E0 MOVX A,@DPTR ; get a Byte from SOURCE
000B A3 INC DPTR ; increment SOURCE address
000C 05A2 INC AUXR1 ; switch data pointers
000E F0 MOVX @DPTR,A ; write the Byte to DEST
000F A3 INC DPTR ; increment DEST address
0010 70F6JNZ LOOP ; check for 0 terminator
0012 05A2 INC AUXR1 ; (optional) restore DPS
76
54
32
1
0
-
ENBOOT
-
GF3
0
-
DPS
Bit
Number
Bit
Mnemonic
Description
7-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
6-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
5
ENBOOT
Enable Boot Flash
Cleared to disable boot ROM.
Set to map the boot ROM between F800h - 0FFFFh.
4-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
3GF3
This bit is a general-purpose user flag.(1)
20
Always Cleared
1-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
0DPS
Data Pointer Selection
Cleared to select DPTR0.
Set to select DPTR1.
相關(guān)PDF資料
PDF描述
AT89C51RB2-SLSIL IC 8051 MCU FLASH 16K 44PLCC
PIC16C72A-04/SP IC MCU OTP 2KX14 A/D PWM 28DIP
AT89C51RB2-RLTIM IC 8051 MCU FLASH 16K 44VQFP
AT89C51RB2-3CSIM IC 8051 MCU FLASH 16K 40DIP
PIC16C72A-04/SO IC MCU OTP 2KX14 A/D PWM 28SOIC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AT89C51RB2-SLSUL 功能描述:8位微控制器 -MCU C51RB2 FLASH 3V 16k Ind 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
AT89C51RB2-SLSUM 功能描述:8位微控制器 -MCU C51RB2 16K FLASH 5V COM 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
AT89C51RC 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller with 32K Bytes Flash
AT89C51RC_05 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller with 32K Bytes Flash
AT89C51RC_08 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller with 32K Bytes Flash