参数资料
型号: MCP4341T-502E/ML
厂商: Microchip Technology
文件页数: 39/59页
文件大小: 0K
描述: IC DGTL POT QUAD 5K 20QFN
标准包装: 3,300
系列: WiperLock™
接片: 129
电阻(欧姆): 5k
电路数: 4
温度系数: 标准值 150 ppm/°C
存储器类型: 非易失
接口: 4 线 SPI(芯片选择)
电源电压: 2.7 V ~ 5.5 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 20-VFQFN 裸露焊盘
供应商设备封装: 20-QFN 裸露焊盘(4x4)
包装: 带卷 (TR)
Micrel, Inc.
KSZ9021GQ
September 2010
44
M9999-091010-1.2
Address
Name
Description
Mode
(1)
Default
31.9
Enable Jabber
1 = Enable jabber counter
0 = Disable jabber counter
RW
1
31.8:7
Reserved
RW
00
31.6
Speed status
1000Base-T
1 = Indicate chip final speed status at
1000Base-T
RO
0
31.5
Speed status
100Base-TX
1 = Indicate chip final speed status at
100Base-TX
RO
0
31.4
Speed status
10Base-T
1 = Indicate chip final speed status at
10Base-T
RO
0
31.3
Duplex status
Indicate chip duplex status
1 = Full-duplex
0 = Half-duplex
RO
0
31.2
1000Base-T
Mater/Slave
status
1 = Indicate 1000Base-T Master mode
0 = Indicate 1000Base-T Slave mode
RO
0
31.1
Software
Reset
1 = Reset chip, except all registers
0 = Disable reset
RW
0
31.0
Link Status
Check Fail
1 = Fail
0 = Not Failing
RO
0
Note:
1.
RW = Read/Write.
RC = Read-cleared
RO = Read only.
SC = Self-cleared.
LH = Latch high.
Extended Registers
Address
Name
Description
Mode
(1)
Default
Register 257 (101h) – Strap Status
257.15:6
Reserved
RO
257.5
CLK125_EN
status
1 = CLK125_EN strap-in is enabled
0 = CLK125_EN strap-in is disabled
RO
257.4:0
PHYAD[4:0]
status
Strapped-in value for PHY Address
RO
Register 258 (102h) – Operation Mode Strap Override
258.15:8
Reserved
RW
258.7
Tri-state all
digital I/Os
1 = Tri-state all digital I/Os for further power
saving during software power down
RW
0
258.6:5
Reserved
RW
258.4
NAND Tree
override
1 = Override strap-in for NAND Tree mode
RW
258.3:2
Reserved
RW
258.1
GMII / MII
override
1 = Override strap-in for GMII / MII mode
RW
258.0
Reserved
RW
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