LAN9311-NU SMSC, LAN9311-NU Datasheet - Page 174

• 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

Revision 1.7 (06-29-10)
BITS
3:1
4
0
IRQ Polarity (IRQ_POL)
When cleared, this bit enables the IRQ line to function as an active low
output. When set, the IRQ output is active high. When the IRQ is configured
as an open-drain output (via the IRQ_TYPE bit), this bit is ignored, and the
interrupt is always active low.
0: IRQ active low output
1: IRQ active high output
RESERVED
IRQ Buffer Type (IRQ_TYPE)
When this bit is cleared, the IRQ pin functions as an open-drain output for
use in a wired-or interrupt configuration. When set, the IRQ is a push-pull
driver.
Note:
0: IRQ pin open-drain output
1: IRQ pin push-pull driver
Note 14.1 Register bits designated as NASR are not reset when either the SRST bit in the
When configured as an open-drain output, the IRQ_POL bit is
ignored and the interrupt output is always active low.
Configuration Register (HW_CFG)
Register (RESET_CTL)
DESCRIPTION
DATASHEET
is set.
174
Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
register or the DIGITAL_RST bit in the
Note 14.1
Note 14.1
NASR
NASR
TYPE
R/W
R/W
SMSC LAN9311/LAN9311i
RO
Reset Control
DEFAULT
Hardware
Datasheet
0b
0b
-