VSC8211XVW Vitesse Semiconductor Corp, VSC8211XVW Datasheet - Page 71

• 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

19.3 Procedure For Selecting CMODE Pin Pull-up/Pull-down Resistor Values
VMDS-10105 Revision 4.1
October 2006
Condition Parameter
SIGDET pin Polarity
Enhanced
ActiPHY
CLKOUTMICRO Fre-
quency
Link Speed Auto-
Downshift Enable
PHY Operating
1.
2.
3.
Name
TM
Using the descriptions in Table 27 column D (“Description”), choose the desired PHY operating condition parameter
values from Column C (“Value”).
Using Table 27 Column B (“CMODE Pin Name and Bit Position”) and the chosen PHY operating condition parameter
values, enter the value of each CMODE pin in
ping”.
Choose the value of each CMODE pull-up or pull-down resistor from
Values”
Enable
based on the CMODE Bit values in Table 26.
CMODE6[2]
CMODE Pin Name and Bit
CMODE6[1]
CMODE6[0]
CMODE7[2]
Table 27. PHY Operating Condition Parameter Description (continued)
Position
Value
The value of this bit is valid in non-SFP mode i.e. when CMODE bit
CMODE1[3] is 1. This CMODE bit sets the polarity (active high or active
low) of the SIGDET pin by setting the default value of
Register
0
1
This CMODE bit sets the default value of
0
1
This bit sets the default value of
0
1
Sets the default value of
0
1
Table 26: “CMODE Bit to PHY Operation Condition Parameter Map-
71 of 165
Active High
Active Low
Enhanced ActiPHY
Enhanced ActiPHY
4Mhz
125 MHz
Link Speed Auto-Downshift Disabled
Link Speed Auto-Downshift Enabled
19E.0.
Extended MII Register 20E.4.
TM
TM
Table 25: “CMODE Pull-up/Pull-down Resistor
Mode Disabled
Mode Enabled
Extended MII Register
Description
MII Register
Extended MII
28.6.
20E.8.
Datasheet
VSC8211