參數(shù)資料
型號(hào): AN1241D
廠商: 飛思卡爾半導(dǎo)體(中國(guó))有限公司
英文描述: Interfacing the MC68HC705J1A to 9356/9366 EEPROMs
中文描述: 接口的MC68HC705J1A的九千三百六十六分之九千三百五十六的EEPROM
文件頁(yè)數(shù): 12/21頁(yè)
文件大小: 253K
代理商: AN1241D
AN1241/D
12
*****************************************************************************
* *
* J1A_9356 Main Program Loop *
* *
* It then runs through the test routine to check for *
* proper serial transmission. The LED is lit if the test passes. *
* *
*****************************************************************************
*** Enable erase/write mode of EEPROM
jsr J9356_EWEN ;call ewen routine
*** Erase all EEPROM memory map
jsr J9356_ERAL ;call eral routine
*** Write $AA55 to $00
lda #$00 ;load address
sta ADDR
lda #$AA ;load data byte high
sta DATA_H
lda #$55 ;load data byte low
sta DATA_L
jsr J9356_WRITE ;call write routine
*** Write $1234 to $20
lda #$20 ;load address
sta ADDR
lda #$12 ;load data byte high
sta DATA_H
lda #$34 ;load data byte low
sta DATA_L
jsr J9356_WRITE ;call write routine
*** Read $00
lda #$00 ;load address
sta ADDR
jsr J9356_READ ;call read routine
lda DATA_H
sta TEST1 ;store away data_h to test1
lda DATA_L
sta TEST2 ;store away data_l to test2
*** Read $20
lda #$20 ;load address
sta ADDR
jsr J9356_READ ;call read routine
lda DATA_H
sta TEST3 ;store away data_h to test3
lda DATA_L
sta TEST4 ;store away data_l to test4
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
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