SMSC EVB8710, User Manual

Page: 8 / 11

EVB8710 Evaluation Board User Manual
Revision 1.1 (05-24-10)
USER MANUAL
SMSC EVB8710
8
Note 2.3 Resistor R11 acts as a pull-up on the MDIO pin. In most situations, the MAC circuitry
provides this pull-up and R11 is not required.
Note 2.4 Pins 11 and 21 of the J1 header must be configured to properly connect to the
nINT/TXER/TXD4 pin of the LAN8710A. Depending on the configured mode, nINT or
TXER/TXD4, R46 must be depopulated or populated. Refer to
Section 2.2.3,
"nINT/TXER/TXD4 Pin Configuration (nINTSEL)," on page 6 for additional information.
Table 2.6 J1 - 2x14 MII Header Pinout
HEADER
PIN DESCRIPTION
HEADER
PIN DESCRIPTION
1 nRST 15 TXD1
2 MDIO ( Note 2.3 ) 16 TXD2
3 MDC 17 TXD3
4 RXD3/PHYAD2 18 CRS_DV/COL/MODE2
5 RXD2/RMIISEL 19 CRS
6 RXD1/MODE1 20 Ground
7 RXD0/MODE0 21 nINT ( Note 2.4 )
8 RXDV 22 VDDIO
9 RXCLK/PHYAD1 23 +3.3V
10 RXER/RXD4/PHYAD0 24 Ground
11 TXER/TXD4 ( Note 2.4 ) 25 Ground
12 TXCLK 26 Ground
13 TXEN 27 Ground
14 TXD0 28 Ground
Table 2.7 P1 - 40-Pin Female MII Connector Pinout
PIN DESCRIPTION PIN DESCRIPTION PIN DESCRIPTION PIN DESCRIPTION
1 +5V 11 TXER
( Note 2.5 )
21 +5V 31 GND
2 MDIO 12 TXCLK 22 GND 32 GND
3 MDC 13 TXEN 23 GND 33 GND
4 RXD3 14 TXD0 24 GND 34 GND
5 RXD2 15 TXD1 25 GND 35 GND
6 RXD1 16 TXD2 26 GND 36 GND
7 RXD0 17 TXD3 27 GND 37 GND
8 RXDV 18 COL 28 GND 38 GND
9 RXCLK 19 CRS 29 GND 39 GND
10 RXER 20 +5V 30 GND 40 +5V