VSC8641XKO Vitesse Semiconductor Corp, VSC8641XKO Datasheet - Page 66

• 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

4.3.12
Table 46.
4.3.13
Table 47.
Revision 4.3
August 2009
RGMII Skew Control
The following table lists the settings available.
RGMII Skew Control, Address 28E (0x1C)
Ethernet Packet Generator (EPG) Control 1
The EPG control register provides access to and control of various aspects of the EPG
testing feature. There are two, separate EPG control registers. The following table lists
the setting available in the first register.
EPG Control Register 1, Address 29E (0x1D)
Bit
15:14 RGMII TX skew
13:12 RGMII RX skew
11:10 Jumbo packet mode
9
8:0
Bit
15
14
13
Name
compensation
enable
compensation
enable
10BASE-T no
preamble mode
Reserved
Name
EPG enable
EPG run or stop
Transmission
duration
Access
R/W
R/W
R/W
R/W
Access
RO
R/W
R/W
R/W
Description
This is a sticky bit.
00 = 0 ns.
01 = 1.4 ns.
10 = 1.7 ns.
11 = 2.0 ns.
Note There is a design consideration
associated with this register. For more
information, see
RGMII Timing Compensation Value,”
page 121.
This is a sticky bit.
00 = 0 ns.
01 = 1.4 ns.
10 = 1.7 ns.
11 = 2.0 ns.
Note There is a design consideration
associated with this register. For more
information, see
RGMII Timing Compensation Value,”
page 121.
This is a sticky bit.
00 = Normal IEEE 1.5 kB packet length.
01 = Normal IEEE 9 kB packet length.
10 = Normal IEEE 12 kB packet length.
11 = Normal IEEE 16 kB packet length.
This is a sticky bit.
1 = Enabled, no preamble required.
0 = Disabled, preamble required.
Description
1 = Enable EPG
1 = Run EPG
1 = Continuous (sends in 10,000-packet
increments)
0 = Send 30,000,000 packets and stop
“Setting the Internal
“Setting the Internal
VSC8641 Datasheet
Configuration
Default
Default
CMODE
CMODE
Page 66
00
0
0
0
0