VSC8641XKO Vitesse Semiconductor Corp, VSC8641XKO Datasheet - Page 107

• 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 91.
Revision 4.3
August 2009
GMII/RGMII MAC Interface Pins (continued)
Pin
49
54
21
22
50
Name
TX_ER
TX_EN
CRS
COL
NSRESET
Type
O
O
I
I
I
PD
PD
PU
ZC
ZC
Description
GMII Mode: (TX_ER)
Transmit error. This input is sampled by the PHY on
the rising edge of GTX_CLK, indicating a transmit
error from the MAC.
RGMII Mode: (TX_CTL)
Multiplexed transmit enable, transmit error. This
input is sampled by the PHY on opposite edges of
GTX_CLK to indicate two transmit conditions of the
MAC:
1. On the rising edge of GTX_CLK, this input
serves as TXEN, indicating valid data is available
on the TXD input data bus.
2. On the falling edge of GTX_CLK, this input
signals a transmit error from the MAC, based on a
logical derivative of TXEN and TXER, per the RGMII
specification.
GMII Mode:
Transmit enable. This input is sampled by the PHY
on the rising edge of GTX_CLK, indicating valid
data is available on the TXD input data bus.
RGMII Mode:
Not used. Leave unconnected.
GMII Mode:
Transmit carrier sense. This output is asserted
when a valid carrier is detected on the copper
media interface.
RGMII Mode:
Not used. Leave unconnected.
GMII Mode:
Transmit collision. This output is asserted when a
collision is detected on the copper media interface
in half duplex operation. For full-duplex operation,
this output is driven low.
RGMII Mode:
Not used. Leave unconnected.
Soft Reset. Active low input that places the device
in a low-power state. Although the device is
powered down, the sticky serial management
interface registers retain their value.
VSC8641 Datasheet
Pin Descriptions
Page 107