VSC8211XVW Vitesse Semiconductor Corp, VSC8211XVW Datasheet - Page 90

• Manufacturer Part Number: VSC8211XVW
• Description: IC PHY 10/100/1000 SGL 117-LBGA
• Manufacturer: Vitesse Semiconductor Corp
• Type: PHY Transceiverr

Specifications of VSC8211XVW

• Number Of Drivers/receivers: 1/1
• Protocol: Gigabit Ethernet
• Voltage - Supply: 3 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 117-LBGA
• Case: BGA
• Dc: 07+
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 907-1023

4.9:5 – Advertise Capability
Bits 4.9:5 allow the user to customize the ability information transmitted to the Link Partner during auto-negotiation. By writing a
“1” to any of these bits, the corresponding ability will be advertised to the Link Partner. Writing a “0” to any bit causes the
corresponding ability to be suppressed from transmission. The state of these bits has no other effect on the operation of the
local PHY. Resetting the chip restores the default bit values. Note that the default values of these bits indicate the true ability of
the VSC8211. These bits are not available for read or write in Clause-37 view, but remain valid for CAT-5 copper media.
4.4:0 – Advertise Selector Field
Since the VSC8211 is a member of the 802.3 class of PHYs, the Advertise Selector Field defaults to “00001”. These bits are
R/W because the Ethernet standard requires them to be R/W. Changing the value of these bits has no effect on PHY operation.
25.3.5.2 Clause 37 View
4.15 – Auto-Negotiation Additional Next-Page Transmission Request
With copper media, this bit functions identically to Clause-28 view. Note, however, that the VSC8211 does not support next-
page transmission over fiber 1000BASE-X media.
4.14 - Reserved
4.13:12 - Transmit Remote Fault
These bits are used by the local MAC to communicate a fault condition to the link partner during auto-negotiation. These bits do
not have any effect on the local PHY operation. These bits are automatically cleared following a successful negotiation with the
link partner. Note that IEEE Clause-37 provides for two remote fault bits, while Clause-28 provides only a single remote fault bit.
This discrepancy is handled in MII Extended Register bits
Mapping OR
4.11:9 - Reserved
4.8 – Advertise Asymmetric Pause Capability
This bit is used by the local MAC to communicate Asymmetric Pause Capability to the link partner during auto-negotiation. This
has no effect on PHY operation. Changing this bit in Clause-37 view will also change bit 4.11 in Clause-28 view.
4.7 – Advertise Symmetric Pause Capability
This bit is used by the local MAC to communicate Symmetric Pause Capability to the link partner during autonegotiation. This
has no effect on PHY operation. Changing this bit in Clause-37 view will also change bit 4.10 in Clause-28 view.
VMDS-10105 Revision 4.1
October 2006
Bit
15
14
13:12 Transmit Remote Fault
11:9
8
7
6
5
4:0
Register 4 (04h) – Auto-Negotiation Advertisement Register - Clause 37 View
Name
Next-Page Transmission Request
Reserved
Reserved
Advertise Asymmetric Pause
Advertise Symmetric Pause
Advertise 1000BASE-X HDX
Advertise 1000BASE-X FDX
Reserved
Access
R/W
RO
R/W
RO
R/W
R/W
R/W
R/W
RO
States
1 = Next-Page transmission request
Remote fault transmission to link partner
1 = Advertise Asymmetric Pause capable CMODE
1 = Advertise Symmetric Pause capable
1 = 1000BASE-X FDX capable
1 = 1000BASE-X HDX capable
90 of 165
16E.2:1 - Remote Fault Mapping Mask
Reset Value
0
0
00
000
CMODE
1
1
00000
and
16E.0 - Remote Fault
Datasheet
VSC8211
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