參數(shù)資料
型號: DS1982
廠商: Maxim Integrated Products, Inc.
英文描述: UniqueWare iButton(UniqueWare iButton標(biāo)準(zhǔn)的EPROM)
中文描述: 1K位只添加iButton®
文件頁數(shù): 9/21頁
文件大?。?/td> 139K
代理商: DS1982
DS1982
062598 9/21
MEMORY FUNCTION FLOW CHART
(cont’d) Figure 6
0Fh
WRITE
MEMORY
N
BUS MASTER T
X
TA1 (T7:T0)
BUS MASTER T
X
TA2 (T15:T8)
BUS MASTER R
8–BIT
CRC OF COMMAND, ADDRESS,
DATA (1
PASS)
CRC OF ADDRESS, DATA
(SUBSEQUENT PASSES)
CRC
CORRECT
Y
BUS MASTER T
X
DATA BYTE (D7:D0)
BUS MASTER T
X
PROGRAM PULSE
BUS MASTER R
BYTE FROM EPROM
END OF
DATA MEMORY
DS1982 INCREMENTS
ADDRESS COUNTER
DS1982 LOADS LSB OF
NEW ADDRESS INTO
CRC GENERATOR
MASTER T
X
RESET
55h
WRITE
STATUS
BUS MASTER T
X
TA1 (T7:T0)
BUS MASTER T
X
TA2 (T15:T8)
CRC
CORRECT
BUS MASTER T
X
DATA BYTE (D7:D0)
BUS MASTER T
X
PROGRAM PULSE
BUS MASTER R
BYTE FROM EPROM
MASTER T
X
RESET
N
Y
Y
N
N
Y
N
Y
Y
EPROM BYTE
=
DATA BYTE
END OF
STATUS
MEMORY
DS1982 INCREMENTS
ADDRESS COUNTER
DS 1982 LOADS LSB OF
NEW ADDRESS INTO
CRC GENERATOR
Y
N
Y
EPROM BYTE
=
DATA BYTE
BUS MASTER R
8–BIT
CRC OF COMMAND, ADDRESS,
DATA (1
PASS)
CRC OF ADDRESS, DATA
(SUBSEQUENT PASSES)
N
N
BT
X
RESET
X
PREDS1982 T
FROM
SCRATCHPAD
TO STATUS EPROM
SCRATCHPAD
TO DATA EPROM
相關(guān)PDF資料
PDF描述
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DS2045W 3.3V Single-Piece 1Mb Nonvolatile SRAM
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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