LAN83C185_03 SMSC [SMSC Corporation], LAN83C185_03 Datasheet - Page 14

• Manufacturer Part Number: LAN83C185_03
• Description: High Performance Single Chip Low Power 10/100 Ethernet Physical Layer Transceiver
• Manufacturer: SMSC [SMSC Corporation]

Rev. 0.6 (12-12-03)
PIN NO.
PIN NO.
PIN NO.
37
48
33
30
29
38
34
16
17
19
20
26
27
TX_ER
(TXD4)
CRS
RX_DV
RXD2
RXD3
TX_CLK
RX_CLK
SPEED100
LINKON
ACTIVITY
FDUPLEX
MDIO
MDC
SIGNAL NAME
SIGNAL NAME
SIGNAL NAME
High Performance Single Chip Low Power 10/100 Ethernet Physical Layer Transceiver (PHY)
Table 3.1 MII Signals (continued)
Table 3.3 Management Signals
Table 3.2 LED Signals
I
I
O
O
O
O
O
O
O
O
O
O
IO
I
TYPE
TYPE
TYPE
DATASHEET
MII Transmit Error: When driven high, the 4B/5B encode
process substitutes the Transmit Error code-group (/H/)
for the encoded data word. This input is ignored in
10BaseT operation.
In Symbol Interface (5B Decoding) mode, this signal
becomes the MII Transmit Data 4: the MSB of the 5-bit
symbol code-group.
Carrier Sense: Indicate detection of carrier.
Receive Data Valid: Indicates that recovered and
decoded data nibbles are being presented on RXD[3:0].
Receive Data 2: Bit 2 of the 4 data bits that sent by the
PHY in the receive path.
Receive Data 3: Bit 3 of the 4 data bits that sent by the
PHY in the receive path.
Transmit Clock: 25MHz in 100Base-TX mode. 2.5MHz in
10Base-T mode.
Receive Clock: 25MHz in 100Base-TX mode. 2.5MHz in
10Base-T mode.
LED1 – SPEED100 indication. Active indicates that the
selected speed is 100Mbps. Inactive indicates that the
selected speed is 10Mbps.
LED2 – LINK ON indication. Active indicates that the Link
(100Base-TX or 10Base-T) is on.
LED3 – ACTIVITY indication. Active indicates that there
is Carrier sense (CRS) from the active PMD.
LED4 – DUPLEX indication. Active indicates that the PHY
is in full-duplex mode.
Management Data Input/OUTPUT: Serial management
data input/output.
Management Clock: Serial management clock.
6
DESCRIPTION
DESCRIPTION
DESCRIPTION
SMSC LAN83C185
Datasheet