參數(shù)資料
型號(hào)： MCP4252-502E/UN
廠商： Microchip Technology
文件頁數(shù)： 29/59頁
文件大?。?/td> 0K
描述： IC POT DGTL 5K 257TAPS 10-MSOP
標(biāo)準(zhǔn)包裝： 100
接片： 257
電阻（歐姆）： 5k
電路數(shù)： 2
溫度系數(shù)： 標(biāo)準(zhǔn)值 150 ppm/°C
存儲(chǔ)器類型： 易失
接口： 4 線 SPI（芯片選擇）
電源電壓： 1.8 V ~ 5.5 V
工作溫度： -40°C ~ 125°C
安裝類型： 表面貼裝
封裝/外殼： 10-TFSOP，10-MSOP（0.118"，3.00mm 寬）
供應(yīng)商設(shè)備封裝： 10-MSOP
包裝： 管件
產(chǎn)品目錄頁面： 676 (CN2011-ZH PDF)
其它名稱： MCP4252-502-E/UN
MCP4252-502-E/UN-ND
Micrel, Inc.
KSZ8051MNL/RNL
July 2010
35
M9999-070910-1.0
Register Description (Continued)
Address
Name
Description
Mode
(1)
Default
Register 0h – Basic Control
0.11
Power Down
1 = Power down mode
0 = Normal operation
If software reset (register 0.15) is used to exit
Power Down mode (register 0.11 = 1), two
software reset writes (register 0.15 = 1) are
required. First write clears Power Down mode;
second write resets chip and re-latches the pin
strapping pin values.
RW
0
0.10
Isolate
1 = Electrical isolation of PHY from MII
0 = Normal operation
RW
Set by ISO strapping pin.
See “Strapping Options” section
for details.
0.9
Restart Auto-
Negotiation
1 = Restart auto-negotiation process
0 = Normal operation.
This bit is self-cleared after a ‘1’ is written to it.
RW/SC
0
0.8
Duplex Mode
1 = Full-duplex
0 = Half-duplex
RW
Inverse of DUPLEX strapping pin
value.
See “Strapping Options” section
for details.
0.7
Collision Test
1 = Enable COL test
0 = Disable COL test
RW
0
0.6:0
Reserved
RO
000_0000
Register 1h – Basic Status
1.15
100Base-T4
1 = T4 capable
0 = Not T4 capable
RO
0
1.14
100Base-TX
Full Duplex
1 = Capable of 100Mbps full-duplex
0 = Not capable of 100Mbps full-duplex
RO
1
1.13
100Base-TX
Half Duplex
1 = Capable of 100Mbps half-duplex
0 = Not capable of 100Mbps half-duplex
RO
1
1.12
10Base-T Full
Duplex
1 = Capable of 10Mbps full-duplex
0 = Not capable of 10Mbps full-duplex
RO
1
1.11
10Base-T Half
Duplex
1 = Capable of 10Mbps half-duplex
0 = Not capable of 10Mbps half-duplex
RO
1
1.10:7
Reserved
RO
0000
1.6
No Preamble
1 = Preamble suppression
0 = Normal preamble
RO
1
1.5
Auto-
Negotiation
Complete
1 = Auto-negotiation process completed
0 = Auto-negotiation process not completed
RO
0
1.4
Remote Fault
1 = Remote fault
0 = No remote fault
RO/LH
0
1.3
Auto-
Negotiation
Ability
1 = Capable to perform auto-negotiation
0 = Not capable to perform auto-negotiation
RO
1
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