VSC8641XKO Vitesse Semiconductor Corp, VSC8641XKO Datasheet - Page 96

• 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 84.
Revision 4.3
August 2009
GMII/RGMII MAC Interface Pins (continued)
Pin
22
21
36
37
38
39
40
41
42
43
34
35
Name
RX_ER
RX_DV
TXD7
TXD6
TXD5
TXD4
TXD3
TXD2
TXD1
TXD0
TX_CLK
GTX_CLK
Type
O
O
O
I
I
PD
PD
I
ZC
ZC
ZC
Description
GMII Mode:
GMII Mode: (RX_ER)
Receive error. This output signals a receive error
from the PHY and is synchronously output on the
rising edge of RX_CLK.
RGMII Mode: (RX_CTL)
Multiplexed receive data valid, receive error. This
output is sampled by the MAC on opposite edges of
RX_CLK to indicate two receive conditions from the
PHY:
1. On the rising edge of RX_CLK, this output
serves as RXDV, signaling valid data is available on
the RXD input data bus.
2. On the falling edge of RX_CLK, this output
signals a receive error from the PHY, based on a
logical derivative of RXDV and RXER, per the
RGMII specification.
GMII Mode:
Receive data valid. This output signals a receive
data valid from the PHY and is synchronously
output on the rising edge of RX_CLK.
RGMII Mode:
Not used. Leave unconnected.
GMII Mode:
Transmit data [7:4] pins. These pins are
synchronously input on the rising edge of
GTX_CLK.
RGMII Mode:
Not used. Leave unconnected.
GMII Mode:
Transmit data [3:0] pins. These pins are
synchronously input on the rising edge of
GTX_CLK.
RGMII Mode:
Multiplexed transmit data. Bits[3:0] are
synchronously input on the rising edge of
GTX_CLK and bits[7:4] on the falling edge of
GTX_CLK.
Transmit clock. This clock is 2.5 MHz for 10 Mbps
mode or 25 MHz for 100 Mbps mode.
Gigabit transmit clock. This clock is 125 MHz for
1000 Mbps mode, with a ±50 ppm tolerance. If
left unconnected, this pin requires a pull-down
resistor to ground.
RGMII Mode:
The transmit clock is 125 MHz for 1000 Mbps
mode, 25 MHz for 100 Mbps mode, or 2.5 MHz for
10 Mbps mode, with a ±50 ppm tolerance.
VSC8641 Datasheet
Pin Descriptions
Page 96