LAN8810 Datasheet, PDF (6/83 Pages) Microchip Technology – GMII 10/100/1000 Ethernet Transceiver

LAN8810/LAN8810I
TABLE 2-1: GMII INTERFACE PINS
Num
Pins
Name
1
Transmit Data 0
Symbols
TXD0
1
Transmit Data 1
TXD1
1
Transmit Data 2
TXD2
1
Transmit Data 3
TXD3
1
Transmit Data 4
TXD4
1
Transmit Data 5
TXD5
1
Transmit Data 6
TXD6
1
Transmit Data 7
TXD7
Transmit Error
1
TXER
1
Transmit Enable
Transmit Clock
TXEN
TXCLK
1
1
GMII Transmit
Clock
1
Receive Data 0
1
Receive Data 1
1
Receive Data 2
1
Receive Data 3
1
Receive Data 4
1
Receive Data 5
GTXCLK
RXD0
RXD1
RXD2
RXD3
RXD4
RXD5
Buffer
Type
VIS
(PD)
VIS
(PD)
VIS
(PD)
VIS
(PD)
VIS
(PD)
VIS
(PD)
VIS
(PD)
VIS
(PD)
VIS
(PD)
VIS
(PD)
VO8
VIS
(PD)
VO6
VO6
VO6
VO6
VO6
VO6
Description
The MAC transmits data to the PHY using this
signal.
The MAC transmits data to the PHY using this
signal.
The MAC transmits data to the PHY using this
signal.
The MAC transmits data to the PHY using this
signal.
The MAC transmits data to the PHY using this
signal.
The MAC transmits data to the PHY using this
signal.
The MAC transmits data to the PHY using this
signal.
The MAC transmits data to the PHY using this
signal.
Indicates a transmit error condition.
Note: This input is ignored during 10BASE-T
operation.
Indicates the presence of valid data on TXD[7:0]
Used to latch data from the MAC into the PHY.
MII (100BASE-TX): 25MHz
MII (10BASE-T): 2.5MHz
Note:
For 1000BASE-T operation, GTXCLK is
used as the transmit clock. TXCLK is not
used in 1000BASE-T mode.
125MHz clock used to latch data from the MAC into
the PHY in 1000BASE-T mode.
The PHY transfers data to the MAC using this
signal.
The PHY transfers data to the MAC using this
signal.
The PHY transfers data to the MAC using this
signal.
The PHY transfers data to the MAC using this
signal.
The PHY transfers data to the MAC using this
signal.
The PHY transfers data to the MAC using this
signal.
DS00001870B-page 6
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