7 / 66 page
AL103 Revision 1.0
9/00
Reference Only / Allayer Communications
7
2. Pin Descriptions
Table 1: MII Interface Port 0
PIN
NAME
PIN
NUMBER
I/O
DESCRIPTION
M0TXD3
M0TXD2
M0TXD1
M0TXD0
7
8
9
11
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.
M0TXEN
12
O
Transmit Enable.
Synchronous to the transmit clock.
M0TXCLK
13
I
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
16
I
Receive Data Valid.
M0RXCLK
15
I
Receive Clock.
M0RXER
14
I
Receive Data Error.
M0CRS
3
I
Carrier Sense.
M0COL
5
I
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
Transmit Enable.
Synchronous to the transmit clock.
M1TXCLK
35
I
Transmit Clock Input.
25 MHz for 100 Mbit/s and 2.5 MHz for 10 Mbit/s.
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
