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DP83821 데이터시트(PDF) 72 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
부품명 DP83821
상세설명  10/100/1000 Mb/s PCI Ethernet Network Interface Controller
PDF  86 Pages
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제조업체  NSC [National Semiconductor (TI)]
홈페이지  http://www.national.com
Logo NSC - National Semiconductor (TI)

DP83821 데이터시트(HTML) 72 Page - National Semiconductor (TI)

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4.0 Register Set (Continued)
4.2.42 TBI Auto-Negotiation Expansion Register
This register is a read-only register indicating if a new base page from the link partner has been received and if the local
device is next page able. Writes to this register have no effect.
4.2.43 TBI Extended Status Register
This is a read-only register indicating all modes of operation for the local device. Writes to this register have no effect.
Tag: TANER
Size: 32 bits
Hard Reset: 00000000h
Offset: 00F0h
Access: Read Only
Soft Reset: 00000000h
bit
tag
description
usage
15-3
unused - returns 0
2
Next Page Able
Local Device supports the
Next Page Function
When set to a 1, this bit indicates that the local device supports the
Next Page function.
1
Page Received
New Page Received from Link
Partner
When set to a 1, this bit indicates that a new page has been
received from the link partner and stored in the applicable auto-
negotiation link partner ability register or next page register.
0
unused - returns 0
Tag: TESR
Size: 32 bits
Hard Reset: 0000C000h
Offset: 00F4h
Access: Read Only
Soft Reset: 0000C000h
bit
tag
description
usage
15
1000BASE-X Full Duplex
Full Duplex 1000BASE-X
Capable
Read-only bit, set to a 1, indicating that the local device is able
to perform full duplex, 1000BASE-X operations.
14
1000BASE-X Half Duplex
Half Duplex 1000BASE-X
Capable
Read-only bit, set to a 1, indicating that the local device is able
to perform half duplex, 1000BASE-X operations.
13-0
unused - returns 0



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