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參數(shù)資料
| 型號： | 25AA160B |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | PHOTOTRANSISTOR NPN 890NM TO-18 |
| 中文描述： | 16K的SPI總線串行EEPROM |
| 文件頁數(shù)： | 10/24頁 |
| 文件大?。?/td> | 521K |
| 代理商： | 25AA160B |
25XX160A/B
DS21807B-page 10
2003 Microchip Technology Inc.
2.5
Read Status Register Instruction
(
RDSR
)
The Read Status Register instruction (
RDSR
) provides
access to the Status Register. The Status Register may
be read at any time, even during a write cycle. The
Status Register is formatted as follows:
TABLE 2-2:
STATUS REGISTER
The
Write-In-Process (WIP)
bit indicates whether the
25XX160A/B is busy with a write operation. When set
to a ‘
1
’, a write is in progress, when set to a ‘
0
’, no write
is in progress. This bit is read-only.
The
Write Enable Latch (WEL)
bit indicates the status
of the write enable latch and is read-only. When set to
a ‘
1
’, the latch allows writes to the array, when set to a
‘
0
’, the latch prohibits writes to the array. The state of
this bit can always be updated via the
WREN
or
WRDI
commands regardless of the state of write protection
on the Status Register. These commands are shown in
Figure 2-4 and Figure 2-5.
The
Block Protection (BP0 and BP1)
bits indicate
which blocks are currently write-protected. These bits
are set by the user issuing the
WRSR
instruction. These
bits are nonvolatile, and are shown in Table 2-3.
See Figure 2-6 for the
RDSR
timing sequence.
FIGURE 2-6:
READ STATUS REGISTER TIMING SEQUENCE (
RDSR
)
7
6
5
4
3
2
1
0
W/R
–
–
–
W/R
W/R
R
R
WPEN
X
X
X
BP1
BP0
WEL
WIP
W/R = writable/readable. R = read-only.
SO
SI
CS
9
10
11
12
13
14
15
1
1
0
0
0
0
0
0
7
6
5
4
2
1
0
instruction
data from Status Register
high-impedance
SCK
0
2
3
4
5
6
7
1
8
3
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 25LC160A | 16K SPI Bus Serial EEPROM |
| 25AA320A_07 | 32K SPI Bus Serial EEPROM |
| 25AA320A | 32K SPI Bus Serial EEPROM |
| 25AA512 | 512 Kbit SPI Bus Serial EEPROM |
| 25AMB12026MB | SINGLE PHASE BRIDGE |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 25AA160B-E/MS | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:16K SPI Bus Serial EEPROM |
| 25AA160B-E/MSG | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:16K SPI Bus Serial EEPROM |
| 25AA160B-E/P | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:16K SPI Bus Serial EEPROM |
| 25AA160B-E/PG | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:16K SPI Bus Serial EEPROM |
| 25AA160B-E/SN | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:16K SPI Bus Serial EEPROM |
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