參數(shù)資料
型號(hào)： KSZ9021GQI
廠商： Micrel Inc
文件頁數(shù)： 29/59頁
文件大?。?/td> 0K
描述： TXRX GIG ETH GMII/MII 128-PQFP
標(biāo)準(zhǔn)包裝： 66
類型： 收發(fā)器
驅(qū)動(dòng)器/接收器數(shù)： 8/8
規(guī)程： 千兆位以太網(wǎng)
電源電壓： 3.135 V ~ 3.465 V
安裝類型： 表面貼裝
封裝/外殼： 128-BFQFP
供應(yīng)商設(shè)備封裝： 128-PQFP（14x20）
包裝： 托盤
其它名稱： 576-3790
Micrel, Inc.
KSZ9021GQ
September 2010
35
M9999-091010-1.2
Register Number (Hex)
Description
27 (1Bh)
Interrupt Control/Status
28 (1Ch)
Digital Debug Control 1
29 (1Dh) – 30 (1Eh)
Reserved
31 (1Fh)
PHY Control
Extended Registers
257 (101h)
Strap Status
258 (102h)
Operation Mode Strap Override
259 (103h)
Operation Mode Strap Status
263 (107h)
Analog Test Register
Register Description
IEEE Defined Registers
Address
Name
Description
Mode
(1)
Default
Register 0 (0h) – Basic Control
0.15
Reset
1 = Software PHY reset
0 = Normal operation
This bit is self-cleared after a ‘1’ is written to it
RW/SC
0
0.14
Loop-back
1 = Loop-back mode
0 = Normal operation
RW
0
0.13
Speed Select
(LSB)
[0.6, 0.13]
[1,1] = Reserved
[1,0] = 1000Mbps
[0,1] = 100Mbps
[0,0] = 10Mbps
This bit is ignored if auto-negotiation is enabled
(register 0.12 = 1)
RW
Hardware Setting
0.12
Auto-
Negotiation
Enable
1 = Enable auto-negotiation process
0 = Disable auto-negotiation process
If enabled, auto-negotiation result overrides
settings in register 0.13, 0.8 and 0.6
RW
1
0.11
Power Down
1 = Power down mode
0 = Normal operation
RW
0
0.10
Isolate
1 = Electrical isolation of PHY from GMII/MII
0 = Normal operation
RW
0
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
Hardware Setting
0.7
Collision Test
1 = Enable COL test
0 = Disable COL test
RW
0
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