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参数资料
| 型号： | 78Q2120C09-DB |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 6/35页 |
| 文件大小： | 0K |
| 描述： | BOARD DEMO 78Q2120C |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 系列： | * |
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78Q2120C
10/100BASE-TX
Transceiver
Page: 14 of 35
2009 Teridian Semiconductor Corporation
Rev 1.3
MR4: Auto-Negotiation Advertisement Register
BIT
SYMBOL TYPE DEFAULT DESCRIPTION
4.15
NP
R
0
Next Page: Not supported. Reads logic zero.
4.14
RSVD
R
0
Reserved
4.13
RF
R/W
0
Remote Fault: Setting this bit to ‘1’ allows the device to indicate to
the link partner a Remote Fault Condition.
4.12:5
TAF
R/W
(0Fh)
Technology Ability Field: The default value of this field is dependent
upon the MR1.15:11 register bits. This field can be overwritten by
management to auto-negotiate to an alternate common technology.
Writing to this register has no effect until auto-negotiation is re-
initiated.
4.12
A7
R
0
Reserved for future technology.
4.11
A6
R/W
0
Reserved
4.10
A5
R/W
0
Reserved.
4.9
A4
R
0
100BASE-T4:
The 78Q2120C does not support 100BASE-T4
operation.
4.8
A3
R/W
(1)
100BASE-TX Full Duplex: If the MR1.14 bit is ‘1’, this bit will be set
to ‘1’ upon reset and will be writeable. Otherwise, this bit cannot be
set to ‘1’ by the management.
4.7
A2
R/W
(1)
100BASE-TX: If the MR1.13 bit is ‘1’, this bit will be set to ‘1’ upon
reset and will be writeable. Otherwise, this bit cannot be set to ‘1’ by
the management.
4.6
A1
R/W
(1)
10BASE-T Full Duplex: If the MR1.12 bit is ‘1’, this bit will be set to
‘1’ upon reset and will be writeable. Otherwise, this bit cannot be set
to ‘1’ by the management.
4.5
A0
R/W
(1)
10BASE-T: If the MR1.11 bit is ‘1’, this bit will be set to ‘1’ upon reset
and will be writeable. Otherwise, this bit cannot be set to ‘1’ by the
management.
4.4:0
S4:0
R
01h
Selector Field: Hard coded with the value of ‘00001’ for IEEE 802.3.
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| 78Q2120-CGT | 制造商:未知厂家 制造商全称:未知厂家 功能描述:10/100BASE-TX Ethernet Transceiver |
| 78Q2123 | 制造商:TERIDIAN 制造商全称:TERIDIAN 功能描述:10/100BASE-TX Transceiver |
| 78Q2123/F | 功能描述:以太网 IC 10/100 Fast Ethernet MicroPHY RoHS:否 制造商:Micrel 产品:Ethernet Switches 收发器数量:2 数据速率:10 Mb/s, 100 Mb/s 电源电压-最大:1.25 V, 3.45 V 电源电压-最小:1.15 V, 3.15 V 最大工作温度:+ 85 C 封装 / 箱体:QFN-64 封装:Tray |
| 78Q2123/F1 | 功能描述:以太网 IC RoHS:否 制造商:Micrel 产品:Ethernet Switches 收发器数量:2 数据速率:10 Mb/s, 100 Mb/s 电源电压-最大:1.25 V, 3.45 V 电源电压-最小:1.15 V, 3.15 V 最大工作温度:+ 85 C 封装 / 箱体:QFN-64 封装:Tray |
| 78Q2123CGV/F | 制造商:TERIDIAN 制造商全称:TERIDIAN 功能描述:10/100BASE-TX Transceiver |
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