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| 型号： | 78Q2123-DB |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 8/38页 |
| 文件大小： | 0K |
| 描述： | BOARD DEMO 78Q2123 78Q2133 |
| 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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78Q2123/78Q2133 Data Sheet
DS_21x3_001
16
Rev. 1.6
3.2
MR1: Status Register
Bits 1.15 through 1.11 reflect the ability of the 78Q2123/78Q2133. They do not reflect any ability changes
made via the MII Management Interface to bits 0.13 (SPEEDSL) , 0.12 (ANEGEN) and 0.8 (DUPLEX) in
the Control Register.
Bit
Symbol
Type
Default
Description
1.15
100T4
R
0
100BASE-T4 Ability: Reads ‘0’ to indicate the
78Q2123/78Q2133 do not support 100Base-T4 mode.
1.14
100X_F
R
1
100BASE-TX Full Duplex Ability:
0 : Not able
1 : Able
1.13
100X_H
R
1
100BASE-TX Half Duplex Ability:
0 : Not able
1 : Able
1.12
10T_F
R
1
10BASE-T Full Duplex Ability:
0 : Not able
1 : Able
1.11
10T_H
R
1
10BASE-T Half Duplex Ability:
0 : Not able
1 : Able
1.10
100T2_F
R
0
100BASE-T2 Full Duplex Ability: Reads ‘0’ to indicate the
78Q2123/78Q2133 do not support 100Base-T2 full duplex
mode.
1.9
100T2_H
R
0
100BASE-T2 Half Duplex Ability: Reads ‘0’ to indicate the
78Q2123/78Q2133 do not support 100Base-T2 full duplex
mode.
1.8
EXTS
R
0
Extended Status Information Availability: Reads ‘0’ to indicate
the 78Q2123/78Q2133 do 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 78Q2123/78Q2133 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 it 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
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| 78Q2123R/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 |
| 78Q2123R/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 |
| 78Q2123S/F | 功能描述:1/1 Transceiver Full Ethernet 16-TQFN (5x5) 制造商:maxim integrated 系列:MicroPHY?? 包装:管件 零件状态:有效 类型:收发器 协议:以太网 驱动器/接收器数:1/1 双工:全 接收器滞后:- 数据速率:- 电压 - 电源:3.3V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:16-WQFN 裸露焊盘 供应商器件封装:16-TQFN（5x5） 标准包装:60 |
| 78Q2123SR/F | 功能描述:1/1 Transceiver Full Ethernet 16-TQFN (5x5) 制造商:maxim integrated 系列:MicroPHY?? 包装:带卷（TR） 零件状态:有效 类型:收发器 协议:以太网 驱动器/接收器数:1/1 双工:全 接收器滞后:- 数据速率:- 电压 - 电源:3.3V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:16-WQFN 裸露焊盘 供应商器件封装:16-TQFN（5x5） 标准包装:2,500 |
| 78Q2132 | 制造商:TDK 制造商全称:TDK Electronics 功能描述:1/10BASE-T HomePNA/Ethernet Transceiver |
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