VSC8601XKN Vitesse Semiconductor Corp, VSC8601XKN Datasheet - Page 59

• Manufacturer Part Number: VSC8601XKN
• Description: IC PHY 10/100/1000 64-EP-LQFP
• Manufacturer: Vitesse Semiconductor Corp
• Type: PHY Transceiverr

Specifications of VSC8601XKN

• Number Of Drivers/receivers: 1/1
• Protocol: Gigabit Ethernet
• Voltage - Supply: 2.5V, 3.3V
• Mounting Type: Surface Mount
• Package / Case: 64-LQFP Exposed Pad, 64-eLQFP, 64-HLQFP
• Case: TQFP
• Dc: 06+
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 907-1028

4.3.6
Table 41.
4.3.7
Table 42.
Revision 4.1
September 2009
Extended PHY Control 3
Register 20E controls the ActiPHY sleep timer, its wake-up timer, the frequency of the
CLKOUT signal, and its link speed downshifting feature. The following table lists the
settings available.
Extended PHY Control 3, Address 20E (0x14)
EEPROM Interface Status and Control
Register 21E is used to affect control over device function when you have incorporated
a startup EEPROM into your design.
EEPROM Interface Status and Control, Address 21E (0x15)
Bit
15
14:13
12:11
10:9
8:6
5
4
3:2
1
0
Bit
15
Name
Reserved
Name
Reserved
ActiPHY sleep timer
Reserved
ActiPHY link status
time-out control
Reserved
MAC RX_CLK
Disable
Enable link speed
auto-downshift
feature
Link speed
auto-downshift
control
Link speed
auto-downshift
status
Reserved
Access Description
Access
R/W
R/W
R/W
R/W
R/W
RO
RO
RO
RO
RO
RO
This is a sticky bit.
00 = 1 second.
01 = 2 seconds.
10 = 3 seconds.
11 = 4 seconds.
00 = 1 second.
01 = 2 second.
10 = 3 second.
11 = 4 second.
1 = RX_CLK is held low.
0 = RX_CLK is in normal operation.
This is a sticky bit.
1 = Enable auto link speed downshift from
1000BASE-T.
This is a sticky bit.
00 = Downshift after two failed 1000BASE-T
auto-negotiation attempts.
01 = Downshift after three failed 1000BASE-T
auto-negotiation attempts.
10 = Downshift after four failed 1000BASE-T
auto-negotiation attempts.
11 = Downshift after five failed 1000BASE-T
auto-negotiation attempts.
1 = Downshift is required or has occurred.
0 = No downshift.
Description
VSC8601 Datasheet
Configuration
Default
Default
Page 59
CMODE
01
01
01
0
0