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参数资料
| 型号： | 78Q2120C09-DB |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/35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: 13 of 35
2009 Teridian Semiconductor Corporation
Rev 1.3
MR1: Status Register
BIT
SYMBOL TYPE DEFAULT DESCRIPTION
1.9
100T2_H
R
0
100BASE-T2 Half Duplex Ability:
Reads ‘0’ to indicate the
78Q2120C does not support 100Base-T2 full duplex mode.
1.8
EXTS
R
0
Extended Status Information Availability: Reads ‘0’ to indicate the
78Q2120C does not support Extended Status information on MR15.
1.7
RSVD
R
0
Reserved
1.6
MFPS
R
0
Management Frame Preamble Suppression Support:
A “0”
indicates that the 78Q2120C can read management frames with a
preamble.
1.5
ANEGC
R
0
Auto-Negotiation Complete: A logic one indicates that the Auto-
Negotiation process has been completed, and that the contents of
registers MR4,5,6 are valid.
1.4
RFAULT
RC
0
Remote Fault: A logic one indicates that a remote fault condition
has been detected and remains set until it is cleared. This bit can
only be cleared by reading this register (MR1) via the management
interface.
1.3
ANEGA
R
(1)
Auto-Negotiation Ability: When set, this bit indicates the device’s
ability to perform Auto-Negotiation.
The value of this bit is
determined by the ANEGEN bit (MR0.12).
1.2
LINK
R
0
Link Status:
A logic one indicates that a valid link has been
established. If the link status should transition from an OK status to
a NOT-OK status, this bit will become cleared and remains cleared
until it is read.
1.1
JAB
RC
0
Jabber Detect: In 10Base-T mode, this bit is set during a jabber
event. After a jabber event, the bit remains set until cleared by a
read operation.
1.0
EXTD
R
1
Extended Capability: Reads ’1’ to indicate the 78Q2120C provides
an extended register set (MR2 and beyond).
MR2: PHY Identifier Register 1
BIT
SYMBOL TYPE
VALUE
DESCRIPTION
2.15:0
OUI
[23:6]
R
000Eh
Organizationally Unique Identifier:
This value is 00-C0-39 for
TERIDIAN Semiconductor Corporation. This register contains the
first 16-bits of the identifier.
MR3: PHY Identifier Register 2
BIT
SYMBOL TYPE
VALUE
DESCRIPTION
3.15:10
OUI
[5:0]
R
1Ch
Organizationally Unique Identifier: Remaining 6 bits of the OUI.
3.9:4
MN
R
0Ch
Model Number: The last 2 digits of the model number 78Q2120C are
encoded into the 6 bits.
3.3:0
RN
R
9h
Revision Number: The value ‘1001’ corresponds to the ninth revision
of the silicon.
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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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