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93LC66 데이터시트(PDF) 5 Page - Microchip Technology

부품명 93LC66
상세설명  Lowpower 3-wire non-volatile memories
PDF  22 Pages
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제조업체  MICROCHIP [Microchip Technology]
홈페이지  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

93LC66 데이터시트(HTML) 5 Page - Microchip Technology

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© 1994 Microchip Technology Inc.
DS00560D-page 5
Using the 93LC56 and 93LC66
8
0189
003A
0C08
movlw
.8
; set number of addresses to
0190
003B
0033
movwf
bytcnt
; read as 8
0191
;
0192
003C
0901
rbyte
call
BSTART
; generate the start bit
0193
003D
0C02
movlw
.2
; set # bits to 2
0194
003E
0032
movwf
bits
;
0195
003F
0C80
movlw
b’10000000'
; get opcode (10b)
0196
0040
0030
movwf
txbuf
; into output buffer
0197
0041
0929
call
TX
; and transmit it
0198
0042
0C08
movlw
.8
;
0199
0043
0032
movwf
bits
; set number of bits to 8
0200
0044
020C
movf
addr,w
; get the address
0201
0045
0030
movwf
txbuf
; into the output buffer
0202
0046
0929
call
TX
; and transmit it
0203
0204
0047
0914
call
RX
; read the high byte
16c5x/7x Cross-Assembler V4.12 Released
Mon Jun 06 10:49:10 1994
Page 5
Line
PC
Opcode
0205
0048
020D
movf
datai,w
; move input data to w
0206
0049
0037
movwf
hbyte
; xfer it to high byte
0207
0208
004A
0914
call
RX
; read the low byte
0209
004B
020D
movf
datai,w
; move input data to w
0210
004C
0037
movwf
hbyte
; xfer it to low byte
0211
0212
004D
0486
bcf
port_b,chpsel
; clear the chip select line
0213
0214
004E
02AC
incf
addr
; add 1 to the address
0215
004F
02F3
decfsz
bytcnt
; have all bytes been read?
0216
0050
0A3C
goto
rbyte
; no, read another byte
0217
0051
0A38
goto
READ
; yes, start over
0218
0000
END
8-103



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