EVB9311 SMSC, EVB9311 Datasheet - Page 28

• Manufacturer Part Number: EVB9311
• Description: EVALUATION BOARD LAN9311-NU
• Manufacturer: SMSC
• Series: 0133r

Specifications of EVB9311

• Main Purpose: Interface, Ethernet
• Embedded: No
• Utilized Ic / Part: LAN9311
• Primary Attributes: 2 Ports, 100BASE-TX/10BASE-T, Managed
• Secondary Attributes: 2 PHYs with HP Auto-MDIX, Auto- Flow Control, 32-bit CRC, MDI/MDI-X
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 638-1076

Revision 1.7 (06-29-10)
3.2
89-92
PIN
110
115
116
111
This section contains the descriptions of the LAN9311/LAN9311i pins. The pin descriptions have been
broken into functional groups as follows:
Note: A list of buffer type definitions is provided in
Pin Descriptions
Ethernet RX
Ethernet RX
Purpose I/O
Ethernet TX
Ethernet TX
Port 1 LED
LAN Port 1 Pins
LAN Port 2 Pins
LAN Port 1 & 2 Power and Common Pins
Host Bus Interface Pins
EEPROM Pins
Dedicated Configuration Strap Pins
Miscellaneous Pins
PLL Pins
Core and I/O Power and Ground Pins
No-Connect Pins
Indicators
Negative
Negative
General
Positive
Positive
NAME
Port 1
Port 1
Port 1
Port 1
Data
nP1LED[3:0]
GPIO[3:0]
SYMBOL
TXN1
RXN1
RXP1
TXP1
Table 3.1 LAN Port 1 Pins
DATASHEET
BUFFER
IS/O12/
TYPE
OD12
OD12
(PU)
AIO
AIO
AIO
AIO
28
Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
LED Indicators: When configured as LED outputs
via the
these pins are open-drain, active low outputs and
the pull-ups and input buffers are disabled. The
functionality of each pin is determined via the
LED_CFG[9:8] bits.
General Purpose I/O Data: When configured as
GPIO via the
(LED_CFG), these general purpose signals are
fully programmable as either push-pull outputs,
open-drain outputs or Schmitt-triggered inputs by
writing the
Register (GPIO_CFG)
Data & Direction Register
pull-ups are enabled in GPIO mode. The input
buffers are disabled when set as an output.
Note:
Ethernet TX Negative: Negative output of Port 1
Ethernet transmitter. See
information.
Ethernet TX Positive: Positive output of Port 1
Ethernet transmitter. See
information.
Ethernet RX Negative: Negative input of Port 1
Ethernet receiver. See
information.
Ethernet RX Positive: Positive input of Port 1
Ethernet receiver. See
information.
Section 1.2, "Buffer Types," on page
LED Configuration Register
See
on page 163
General Purpose I/O Configuration
LED Configuration Register
Chapter 13, "GPIO/LED Controller,"
DESCRIPTION
for additional details.
and
Note 3.1
Note 3.1
Note 3.1
Note 3.1
(GPIO_DATA_DIR). The
General Purpose I/O
SMSC LAN9311/LAN9311i
for additional
for additional
for additional
for additional
(LED_CFG),
18.
Datasheet