參數(shù)資料
型號(hào): AT80C51RA2-SLSUM
廠商: Atmel
文件頁(yè)數(shù): 72/84頁(yè)
文件大小: 0K
描述: IC 8051 MCU ROMLESS 44PLCC
標(biāo)準(zhǔn)包裝: 972
系列: 80C
核心處理器: 8051
芯體尺寸: 8-位
速度: 40/20MHz
連通性: UART/USART
外圍設(shè)備: POR,PWM,WDT
輸入/輸出數(shù): 32
程序存儲(chǔ)器類型: ROMless
RAM 容量: 512 x 8
電壓 - 電源 (Vcc/Vdd): 4.5 V ~ 5.5 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 44-LCC(J 形引線)
包裝: 管件
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 76
2007-2012 Microchip Technology Inc.
EXAMPLE 5-2:
LOADING THE WRITE BUFFERS
EXAMPLE 5-3:
INITIATING A PROGRAMMING SEQUENCE
; Set up NVMCON for row programming operations
MOV
#0x4001, W0
;
MOV
W0, NVMCON
; Initialize NVMCON
; Set up a pointer to the first program memory location to be written
; program memory selected, and writes enabled
MOV
#0x0000, W0
;
MOV
W0, TBLPAG
; Initialize PM Page Boundary SFR
MOV
#0x6000, W0
; An example program memory address
; Perform the TBLWT instructions to write the latches
; 0th_program_word
MOV
#LOW_WORD_0, W2
;
MOV
#HIGH_BYTE_0, W3
;
TBLWTL W2, [W0]
; Write PM low word into program latch
TBLWTH W3, [W0++]
; Write PM high byte into program latch
; 1st_program_word
MOV
#LOW_WORD_1, W2
;
MOV
#HIGH_BYTE_1, W3
;
TBLWTL W2, [W0]
; Write PM low word into program latch
TBLWTH W3, [W0++]
; Write PM high byte into program latch
;
2nd_program_word
MOV
#LOW_WORD_2, W2
;
MOV
#HIGH_BYTE_2, W3
;
TBLWTL W2, [W0]
; Write PM low word into program latch
TBLWTH W3, [W0++]
; Write PM high byte into program latch
; 63rd_program_word
MOV
#LOW_WORD_31, W2
;
MOV
#HIGH_BYTE_31, W3
;
TBLWTL W2, [W0]
; Write PM low word into program latch
TBLWTH W3, [W0++]
; Write PM high byte into program latch
DISI
#5
; Block all interrupts with priority <7
; for next 5 instructions
MOV
#0x55, W0
MOV
W0, NVMKEY
; Write the 55 key
MOV
#0xAA, W1
;
MOV
W1, NVMKEY
; Write the AA key
BSET
NVMCON, #WR
; Start the erase sequence
NOP
; Insert two NOPs after the
NOP
; erase command is asserted
相關(guān)PDF資料
PDF描述
AT80C51RA2-SLSUL IC 8051 MCU ROMLESS 44PLCC
AT80C51RA2-RLTUM IC 8051 MCU ROMLESS 44VQFP
213931-5 CONN JACKSCREW RECEPT 34 POS
AT80C51RA2-RLTUL IC 8051 MCU ROMLESS 44VQFP
AT80C51RA2-3CSUM IC 8051 MCU ROMLESS 40DIP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AT80C51RB2-3CSCM 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:80C51 High Performance ROM 8-bit Microcontroller
AT80C51RB2-3CSIM 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:80C51 High Performance ROM 8-bit Microcontroller
AT80C51RB2-3CSUM 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:80C51 High Performance ROM 8-bit Microcontroller
AT80C51RB2-RLTIL 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:80C51 High Performance ROM 8-bit Microcontroller
AT80C51RB2-RLTIM 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:80C51 High Performance ROM 8-bit Microcontroller