LAN9311-NU SMSC, LAN9311-NU Datasheet - Page 33

• Manufacturer Part Number: LAN9311-NU
• Description: IC ETHER SW 2PRT 16BIT 128-VTQFP
• Manufacturer: SMSC
• Type: Two Port Managed Ethernet Switchr

Specifications of LAN9311-NU

• Controller Type: Ethernet Switch Controller
• Interface: Serial EEPROM
• Voltage - Supply: 3.3V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 128-TQFP, 128-VQFP
• Product: Ethernet Switches
• Number Of Transceivers: 1
• Standard Supported: 802.3, 802.3u
• Data Rate: 10 MB, 100 MB
• Supply Voltage (max): 3.3 V
• Supply Voltage (min): 0 V
• Maximum Operating Temperature: + 70 C
• Ethernet Connection Type: 10 Base-T, 100 Base-TX
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• For Use With: 638-1076 - EVALUATION BOARD LAN9311-NU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 638-1075

Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
Datasheet
SMSC LAN9311/LAN9311i
PIN
67
68
69
70
Note: For more information on configuration straps, refer to
Note 3.6
PHY Address
MDIX Enable
MDIX Enable
LED Enable
Port 1 Auto-
Port 2 Auto-
NAME
Strap
Strap
Strap
Strap
page
in
Table
Configuration strap values are latched on power-on reset or nRST de-assertion.
Configuration strap pins are identified by an underlined symbol name. Some configuration
straps can be overridden by values from the EEPROM Loader. Refer to
"Configuration Straps," on page 40
40. Additional strap pins, which share functionality with the EEPROM pins, are described
3.5.
AUTO_MDIX_1
AUTO_MDIX_2
Table 3.6 Dedicated Configuration Strap Pins
PHY_ADDR_SEL
SYMBOL
LED_EN
DATASHEET
BUFFER
TYPE
(PU)
(PU)
(PU)
(PU)
IS
IS
IS
IS
33
for more information.
LED Enable Strap: Configures the default value
for the LED_EN bits in the
Register
LED/GPIO pins are configured as GPIOs. When
latched high, all 8 LED/GPIO pins are configured
as LEDs. See
PHY Address Select Strap: Configures the default
MII management address values for the PHYs
(Virtual, Port 1, and Port 2) as detailed in
7.1.1, "PHY Addressing," on page
See
Port 1 Auto-MDIX Enable Strap: Configures the
Auto-MDIX functionality on Port 1. When latched
low, Auto-MDIX is disabled. When latched high,
Auto-MDIX is enabled.
See
Port 2 Auto-MDIX Enable Strap: Configures the
Auto-MDIX functionality on Port 2. When latched
low, Auto-MDIX is disabled. When latched high,
Auto-MDIX is enabled.
See
0
1
Note
Note
Note
(LED_CFG). When latched low, all 8
3.6.
3.6.
3.6.
0
1
Section 4.2.4, "Configuration Straps," on
Note
DESCRIPTION
1
2
3.6.
2
3
LED Configuration
Revision 1.7 (06-29-10)
82.
Section 4.2.4,
Section