VSC8211XVW Vitesse Semiconductor Corp, VSC8211XVW Datasheet - Page 77

• 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

VSC8211
Datasheet
22.1.2 Serial MAC to Serial Media PHY Operating Mode:
In this mode, the high-speed serial data on the SDIP/SPIN input pins is routed to the RDP/RDN output pins and data from the
TDP/TPN input pins is routed to the SDOP/SDON output pins. A 625MHz clock, recovered from the data on the SDIP/SDIN
input pins, is driven out on the SCLKP/SCLKN outputs.
See
Section 9.4.10: "Serial MAC/Media Interface Signals"
for more information.
23 IEEE802.3 Clause 28/37 Remote Fault Indication Support
The VSC8211 is capable of both Clause-28 and Clause-37 autonegotiation. In addition, the VSC8211 can be configured for a
register view corresponding to Clause-28 or Clause-37. However, in IEEE802.3, Clause-37 provides for two remote fault bits,
while Clause-28 provides only a single remote fault bit. A third remote fault status bit is also located in MII Register Bit 1.4,
which is independent of the register view.
In instances where the register view is configured for a different IEEE Clause than the current autonegotiation advertisement,
Extended MII Register -bits 16E.2:0 handle the mapping between autonegotiation and register view. These bits also control the
result of MII Register bit 1.4 if a remote fault is detected in the link partner.
There are four possible combinations of register view and autonegotiation. In each case, remote fault conditions are both
transmitted by the local PHY and received from the link partner. Remote fault conditions in each of these are described below:
Clause-28 autonegotiation with Clause-28 register view- One remote fault bit is received from the link partner and one bit is
transmitted from the local PHY to the link partner. No special handling of registers 4/5, or MII Register bit 1.4 is necessary, as
the two modes are identical.
Clause-28 autonegotiation with Clause-37 register view- One remote fault bit is received from the link partner and must be
mapped to two MII Register bits 5.13:12, as well as MII Register bit 1.4. Two remote fault MII Register bits 4.13:12 must be
mapped to a single bit to transmit from the local PHY to the link partner.
Clause-37 autonegotiation with Clause-28 register view- Two remote fault bits are received from the link partner and must be
mapped to one MII Register bit 5.13, as well as MII Register bit 1.4. One remote fault MII Register bit 4.13 must be mapped to
two bits to transmit from the local PHY to the link partner.
Clause-37 autonegotiation with Clause-37 register view- Two remote fault bits are received from the link partner and two remote
fault bits are transmitted from the local PHY to the link partner. No special handling of registers 4/5 is necessary. MII Register
bits 5:13:12 must be mapped to MII Register bit 1.4.
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VMDS-10105 Revision 4.1
October 2006