DP83820BVUW National Semiconductor, DP83820BVUW Datasheet - Page 69

• Manufacturer Part Number: DP83820BVUW
• Description: IC INTERFACE CONTROLLER 208-PQFP
• Manufacturer: National Semiconductor

Specifications of DP83820BVUW

• Controller Type: Ethernet Controller, MAC/BIU
• Interface: IEEE 802.3
• Voltage - Supply: 3.3V
• Current - Supply: 150mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 208-MQFP, 208-PQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: *DP83820BVUW

4.0 Register Set
4.2.38 TBI Control Register
This register is used to enable and/or restart TBI auto-negotiation. It is also used to enable PCS loopback of TBI data.
4.2.39 TBI Status Register
This register indicates the link status and the auto-negotiation status for the TBI interface.
4.2.40 TBI Auto-Negotiation Advertisement Register
This register is configured before auto-negotiation begins and contains the advertised ability of the local device.
15-6
11-10
4-3
1-0
bit
bit
15
14
8-0
bit
5
2
15
14
13
12
9
MR_AN_COMPLETE TBI Auto-negotiation
MR_LINK_STATUS
MR_RESTART_AN
MR_AN_ENABLE
MR_LOOPBACK
tag
NP
tag
tag
Offset: 00E0h
Offset: 00E4h
Offset: 00E8h
(Continued)
Tag: TBICR
Tag: TBISR
Tag: TANAR
Next Page Exchange
Required
Link Status of the TBI
Interface
Completed Successfully
TBI PCS Loopback
Enable
TBI Auto-Negotiation
Enable
Restarts the TBI Auto-
negotiation Process
description
description
description
Access: Read Write
Access: Read Only
Access: Read Write
Size: 32 bits
Size: 32 bits
Size: 32 bits
unused - Returns 0
When set to a 1, indicates to TBI that the interfacing PHY device is in
loopback mode (i.e. signal detect not necessarily required).
unused - returns 0
When set to a 1, enables the Auto-negotiation function for the TBI
interface. R/W
unused - returns 0
When set to a 1, TBI Auto-Negotiation is restarted. This bit allows
management control of renegotiation.
unused - returns 0
unused - returns 0
Read-only bit, when set to a 1, indicates that the TBI interface is ready
to transmit and receive data.
unused - returns 0
Read-only bit, when set to a 1, indicates that the TBI interface has
successfully completed auto-negotiation.
unused - returns 0
When set to a 1, this bit indicates that next page transmission is
requested. Subsequent next pages may set the NP bit to a 0 to
indicate next page transmission is completed. A device may implement
next page ability and choose not to engage in a next page exchange
by clearing this bit.
mr_adv_ability
69
Hard Reset: 00000000h
usage
Hard Reset: 00000000h
Hard Reset: 00000000h
usage
usage
Soft Reset: 00000000h
Soft Reset: 00000000h
Soft Reset: 00000000h
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