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DP83867CS 数据表(PDF) 46 Page - Texas Instruments

部件名 DP83867CS
功能描述  DP83867E/IS/CS Robust, High Immunity, Small Form Factor 10/100/1000 Ethernet Physical Layer Transceiver
PDF  129 Pages
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制造商  TI2 [Texas Instruments]
网页  https://www.ti.com
标志 TI2 - Texas Instruments

DP83867CS 数据表(HTML) 46 Page - Texas Instruments

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Table 7-10. Basic Mode Control Register (BMCR), Address 0x0000 (continued)
BIT
BIT NAME
DEFAULT
DESCRIPTION
10
ISOLATE
0, RW
Isolate:
1 = Isolates the Port from the MII with the exception of the serial
management.
0 = Normal operation.
9
RESTART AUTO-NEGOTIATION 0, RW/SC
Restart Auto-Negotiation:
1 = Restart Auto-Negotiation. Reinitiates the Auto-Negotiation
process. If Auto-Negotiation is disabled (bit 12 = 0), this bit is
ignored. This bit is self-clearing and returns a value of 1 until Auto-
Negotiation is initiated, whereupon the bit self-clears. Operation of
the Auto-Negotiation process is not affected by the management
entity clearing this bit.
0 = Normal operation.
8
DUPLEX MODE
Strap, RW
Duplex Mode:
When auto-negotiation is disabled writing to this bit allows the port
Duplex capability to be selected.
1 = Full Duplex operation.
0 = Half Duplex operation.
7
COLLISION TEST
0, RW
Collision Test:
1 = Collision test enabled.
0 = Normal operation.
When set, this bit causes the COL signal to be asserted in response
to the assertion of TX_EN within 512-bit times. The COL signal
deasserts within 4-bit times in response to the deassertion of
TX_EN.
6
SPEED SELECTION MSB
1, RW
Speed Select: See description for bit 13.
5:0
RESERVED
0 0000, RO
RESERVED: Write ignored, read as 0.
DP83867CS, DP83867IS, DP83867E
SNLS504F – OCTOBER 2015 – REVISED JANUARY 2025
www.ti.com
46
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Copyright © 2025 Texas Instruments Incorporated
Product Folder Links: DP83867CS DP83867IS DP83867E



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