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参数资料
| 型号： | ICS1890Y-14 |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 1 CHANNEL(S), 100M bps, SERIAL COMM CONTROLLER, PQFP64 |
| 封装： | TQFP-64 |
| 文件页数： | 20/66页 |
| 文件大小： | 1749K |
| 代理商： | ICS1890Y-14 |
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27
ICS1890
Auto-Negotiation Link Partner Ability Register (register 5 [0x05])
Auto-Negotiation Link Partner Ability
Register (register 5)
The Auto-Negotiation link partner ability register is a 16-bit
read-only register used to indicate the abilities of the link
partner. When compared to local abilities in register 4 and
sorted by the standard IEEE priority table the highest possible
performance link can be determined. Note that the values in
this register are only valid when Auto-Negotiation is complete
as indicated by (1:5) or the equivalent bit in the QuickPoll
register.
Next Page (bit 15)
If set to a logic one, this bit indicates that the link partner can
operate in the next page mode. Since the ICS1890 does not
support the next page function, no action or response results
from this indication.
Reserved (bit 14)
This reserved bit will always be returned as a logic zero.
Remote Fault (bit 13)
When the remote fault bit of the Link Code Word is set to a
logic one, the ICS1890 sets the remote fault bit in the Link
Partner Ability Register to a logic one. This indicates that the
link partner has detected an error.
Technology Field (bits 12:5)
This 8-bit field specifies the data transmission technologies
supported by the remote partner. The contents are valid on
successful completion of Auto-Negotiation as indicated by a
logic one in bit 5 of the ICS1890 status register.
Selector Field (bits 4:0)
This 5-bit field indicates the technology supported by the link
partner. A valid IEEE 802.3 link partner will always signal
( 00001).A code of ( 00010) indicates an IEEE 802.9a partner.
All other codes are currently undefined.
Bit
Definition
When bit=0
When bit=1
Access
Default
Hex
15
Next Page
partner does not support
next page exchange
partner supports next
page exchange
RO
0
14
Reserved by IEEE
always 0
RO
0
13
Remote Fault
no fault
a fault has occurred at
the remote link partner
RO
0
12
Technology Ability Field
bit A7
reserved by IEEE
RO
0
11
Technology Ability Field
bit A6
reserved by IEEE
RO
0
10
Technology Ability Field
bit A5
reserved by IEEE
RO
0
9
TAF bit A4: 100Base-T4
Capability
partner does not support
100Base-T4
partner supports
100Base-T4
RO
0
8
TAF A3: 100Base-TX
Full Duplex Capability
partner does not support
100Base- TX Full
Duplex
partner supports
100Base- TX Full
Duplex
RO
0
7
TAF A2: 100Base-TX
Half Duplex Capability
partner does not support
100Base- TX Half
Duplex
partner supports
100Base- TX Half
Duplex
RO
0
6
TAF A1: 10Base-T Full
Duplex Capability
partner does not support
10Base-T Full Duplex
partner supports
10Base-T Full Duplex
RO
0
5
TAF A0: 10Base-T Half
Duplex Capability
partner does not support
10Base-T Half Duplex
partner supports
10Base-T Half Duplex
RO
0
4
Selector Field bit S4
see decode table
RO
0
3
Selector Field bit S3
see decode table
802.3 = 00001
RO
0
2
Selector Field bit S2
see decode table
802.9 = 00010
RO
0
1
Selector Field bit S1
see decode table
RO
0
Selector Field bit S0
see decode table
RO
0
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ICS1890Y-4 | 制造商:ICS 功能描述:1890Y-4 |
| ICS1891 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:LAN Transceiver |
| ICS1891Y | 制造商:未知厂家 制造商全称:未知厂家 功能描述:LAN Transceiver |
| ICS1892 | 制造商:ICS 制造商全称:ICS 功能描述:10Base-T/100Base-TX Integrated PHYceiver |
| ICS1892Y | 制造商:ICS 制造商全称:ICS 功能描述:10Base-T/100Base-TX Integrated PHYceiver |
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