DP83865-EB National Semiconductor, DP83865-EB Datasheet - Page 25

• Manufacturer Part Number: DP83865-EB
• Description: BOARD EVALUATION DP83865
• Manufacturer: National Semiconductor

Specifications of DP83865-EB

• Main Purpose: Interface, Ethernet
• Utilized Ic / Part: DP83865
• Lead Free Status / RoHS Status: Not applicable / Not applicable

2.0 Register Block
This register contains the advertised abilities of this device as they will be transmitted to its link partner during Auto-Negoti-
ation.
4:0
Bit
8
7
6
5
100BASE-TX
100BASE-TX
(Half Duplex)
(Half Duplex)
Full Duplex
Full Duplex
10BASE-T
10BASE-T
Bit Name
PSB[4:0]
Table 7. Auto-Negotiation Advertisement Register (ANAR) address 0x04
(Continued)
5’b<0_0001>, P Protocol Selection Bits:
STRAP[1], RW 100BASE-TX Full Duplex Support:
STRAP[1], RW 100BASE-TX (Half Duplex) Support:
STRAP[1], RW 10BASE-T Full Duplex Support:
STRAP[1], RW 10BASE-T (Half Duplex) Support:
Default
1 = 100BASE-TX Full Duplex is supported by the local device.
0 = 100BASE-TX Full Duplex not supported.
The default value of this bit is determined by the combination of
the Duplex Enable and Speed[1:0] strap pins during reset/power-
on IF Auto-Negotiation is enabled.
The advertised speed is determined by the Speed[1:0]:
The advertised duplex mode is determined by Duplex Mode:
0 = Half Duplex
1 = Full Duplex
1 = 100BASE-TX (Half Duplex) is supported by the local device.
0 = 100BASE-TX (Half Duplex) not supported.
(The default value of this bit is determined by the combination of
the Duplex Enable and Speed[1:0] strap pins during reset/power-
on IF Auto-Negotiation is enabled. See bit 8 for details.)
1 = 10BASE-T Full Duplex is supported.
0 = 10BASE-T Full Duplex is not supported.
(The default value of this bit is determined by the combination of
the Duplex Enable and Speed[1:0] strap pins during reset/power-
on IF Auto-Negotiation is enabled. See bit 8 for details.)
1 = 10BASE-T (Half Duplex) is supported by the local device.
0 = 10BASE-T (Half Duplex) is not supported.
(The default value of this bit is determined by the combination of
the Duplex Enable and Speed[1:0] strap pins during reset/power-
on IF Auto-Negotiation is enabled. See bit 8 for details.)
These bits contain the binary encoded protocol selector support-
ed by this port. <00001> indicates that this device supports IEEE
802.3.
Speed[1]
25
0
0
1
1
Speed[0]
0
1
0
1
Description
Speeds Enabled
= 1000B-T, 100B-TX, 10B-T
= 1000B-T, 100B-TX
= 1000B-T
= 1000B-T, 10B-T
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