参数资料
型号: TS80C51RA2-MIB
厂商: Atmel
文件页数: 72/84页
文件大小: 0K
描述: IC MCU 8BIT 256BYTE 40MHZ 44PLCC
标准包装: 27
系列: 80C
核心处理器: 8051
芯体尺寸: 8-位
速度: 40/20MHz
连通性: UART/USART
外围设备: POR,PWM,WDT
输入/输出数: 32
程序存储器类型: ROMless
RAM 容量: 256 x 8
电压 - 电源 (Vcc/Vdd): 4.5 V ~ 5.5 V
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 44-LCC(J 形引线)
包装: 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
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