VSC8641XKO Vitesse Semiconductor Corp, VSC8641XKO Datasheet - Page 65

• Manufacturer Part Number: VSC8641XKO
• Description: IC PHY 10/100/1000 100-LQFP
• Manufacturer: Vitesse Semiconductor Corp
• Type: PHY Transceiverr

Specifications of VSC8641XKO

• Number Of Drivers/receivers: 1/1
• Protocol: Gigabit Ethernet
• Voltage - Supply: 2.5V, 3.3V
• Mounting Type: Surface Mount
• Package / Case: 100-LQFP
• Case: TQFP
• Dc: 07+
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 907-1031

Table 45.
Revision 4.3
August 2009
Extended PHY Control 5, Address 27E (0x1B) (continued)
Bit
13:12
11
10
9
8:6
5:3
2:0
Name
CRS behavior
control
EEPROM present
Far End loopback
mode
PICMG 2.16 reduced
power mode
100BASE-TX
transmitter
amplitude control
1000BASE-T
transmitter
amplitude control
1000BASE-T edge
rate control
Access
R/W
R/W
R/W
R/W
R/W
R/W
RO
Description
This is a sticky bit.
Controls the CRS Behavior. The effect of
each setting depends on whether it is half-
duplex or full-duplex operation.
For half-duplex operation:
00: CRS = RX_DV + TX_EN
01: CRS = RX_DV + TX_EN
10: CRS = RX_DV
11: CRS = RX_DV.
For full-duplex operation:
00: CRS = RX_DV
01: CRS = 0
10: CRS = RX_DV
11: CRS = 0.
1 = Configuration EEPROM detected on the
EECLK and EEDAT pins.
1 = Enabled.
This is a sticky bit.
1 = Enabled.
This is a sticky bit.
011 = Reserved.
010 = +4 amplitude setting (largest).
001 = +3 amplitude setting.
000 = +2 amplitude setting.
111 = +1 amplitude setting.
110 = Default amplitude.
101 = –1 amplitude setting.
100 = –2 amplitude setting (smallest).
This is a sticky bit.
011 = Reserved.
010 = +2 amplitude setting (largest).
001 = +1 amplitude setting.
000 = Default amplitude.
111 = –1 amplitude setting.
110 = –2 amplitude setting.
101 = –3 amplitude setting.
100 = –4 amplitude setting (smallest)
This is a sticky bit.
011 = +4 edge rate (slowest).
010 = +3 edge rate.
001 = +2 edge rate.
000 = +1 edge rate.
111 = default edge rate.
110 = –1 edge rate.
101 = –2 edge rate.
100 = –3 edge rate (fastest)
VSC8641 Datasheet
Configuration
Default
Page 65
110
000
111
00
0
0
0