EVB8187 Standard Microsystems (SMSC), EVB8187 Datasheet - Page 8

• Manufacturer Part Number: EVB8187
• Manufacturer: Standard Microsystems (SMSC)

Specifications of EVB8187

• Lead Free Status / Rohs Status: Supplier Unconfirmed

Revision 0.7 (12-8-06)
2.5.2
10
2
3
4
5
6
7
8
9
†.TX_ER from the MII is not used on the EVB-LAN8187, but can be monitored on the test header
J2.
RX_CLK
RX_DV
RX_ER
MII Pin Description
The signals are defined in
RXD3
RXD2
RXD1
RXD0
MDIO
MDC
GND[18-1]
+5V[4-1]]
RXD[3-0]
TXD[3-0]
RX_CLK
RX_DV
NAME
MDIO
MDC
12
13
14
15
16
17
18
19
20
Table 4 AMP MII connector pintou RA (P1)
RELATIVE TO
EVB-LAN8187
DIRECTION
Input/Ouptut
Output
Output
Output
Power
Power
TX_CLK
Table 5 MII 40 PIN DESCRIPTION
Input
Input
TX_EN
+5V[4]
Table 5
TXD0
TXD1
TXD2
TXD3
COL
CRS
www.smsc.com
with a description relative to the EVB8187
ACTIVE
LEVEL
TBA
TBA
TBA
TBA
TBA
TBA
n/a
n/a
22
23
24
25
26
27
28
29
30
8
DESCRIPTION
Ground Plane.
+5v supply from the MII connector.
Converted to +3.3v on the EVB and used
to power the LAN8187 PHY and +3.3v
rail.
Receive data bits 0 to 3 that are sent by
the PHY to the receive path of the MII
connector to the MAC controller.
Transmit data bits 0 to 3 that are
accepted by the PHY in the receive path
from the MAC controller.
Management Data Input Output: serial
managment data input/output.
Management Data Clock:
clock signal for the above MDIO signal.
Receive data valid:
this signal indicates that recovered and
decoded data nibbles are being presented
on RXD[3:0].
Receive Clock:
25Mhz in 100base-TX mode. 2.5Mhz in
10base-T mode.
GND[18]
GND[17]
GND[16]
GND[15]
GND[14]
GND[13]
GND[12]
GND[10]
GND[11]
32
33
34
35
36
37
38
39
40
GND[8]
GND[7]
GND[6]
GND[5]
GND[4]
GND[3]
GND[2]
GND[1]
+5V[1]
EVB8187 User Manual
SMSC EVB8187