AL103 Revision 1.0
2. Pin Descriptions
Table 1: MII Interface Port 0
PIN
NAME
PIN
NUMBER
I/O
DESCRIPTION
M0TXD3
M0TXD2
M0TXD1
M0TXD0
7
8
9
O
Transmit Data - NRZ data to be transmitted to transceiver.
Signal TX_EN and TXD0 through TX_D3 are clocked out by
the rising edge of TX_CLK.
11
M0TXEN
12
O
I
Transmit Enable.
Synchronous to the transmit clock.
M0TXCLK
13
Transmit Clock Input.
25 MHz for 100 Mbit/s and 2.5 MHz for 10 Mbit/s.
M0RXD3
M0RXD2
M0RXD1
M0RXD0
21
19
18
17
I
Receive Data - NRZ data from the transceiver.
For MII interface, signal RX_DV, RX_ER and RX_D0 through
RX_D3 are sampled by the rising edge of RX_CLK.
M0RXDV
M0RXCLK
M0RXER
M0CRS
16
15
14
3
I
I
I
I
I
Receive Data Valid.
Receive Clock.
Receive Data Error.
Carrier Sense.
M0COL
5
Collision Detect.
Table 2: MII Interface Port 1
PIN
NAME
PIN
NUMBER
I/O
DESCRIPTION
M1TXD3
M1TXD2
M1TXD1
M1TXD0
29
30
31
33
O
Transmit Data - NRZ data to be transmitted to transceiver.
Signal TX_EN and TXD0 through TX_D3 are clocked out by
the rising edge of TX_CLK.
M1TXEN
34
O
I
Transmit Enable.
Synchronous to the transmit clock.
M1TXCLK
35
Transmit Clock Input.
25 MHz for 100 Mbit/s and 2.5 MHz for 10 Mbit/s.
9/00
Reference Only / Allayer Communications
7
ABC [ ABC Taiwan Electronics Corp ]
