LAN9311-NU SMSC, LAN9311-NU Datasheet - Page 138
LAN9311-NU
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
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Manufacturer
Quantity
Price
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CINCERA
Quantity:
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Chapter 10 Serial Management
Revision 1.7 (06-29-10)
10.1
10.2
eeprom_type_strap
eeprom_type_strap
TYPE/MODE
I
EEPROM
2
EEPROM
Microwire
EEPROM
C Master
Master
Mode
Mode
= 1
= 0
This chapter details the LAN9311/LAN9311i serial management functionality of the I
EEPROM Controller and the supporting EEPROM Loader.
The I
external EEPROM with the system register bus and the EEPROM Loader. Multiple types
(I
and size are accomplished via the eeprom_type_strap and eeprom_size_strap[1:0] configuration straps
respectively. Various commands are supported for each EEPROM type, allowing for the storage and
retrieval of static data. The I
The EEPROM Loader provides the automatic loading of configuration settings from the EEPROM into
the LAN9311/LAN9311i at reset. The EEPROM Loader module interfaces to the EEPROM Controller,
Ethernet PHYs, and the system CSRs.
Based on the configuration strap eeprom_type_strap, the I
either Microwire or I
and characteristics differ dependant on the selected EEPROM type as summarized in
Note: When the EEPROM Loader is running, it has exclusive use of the I
Functional Overview
I
2
2
C/Microwire) and sizes of external EEPROMs are supported. Configuration of the EEPROM type
C/Microwire Master EEPROM Controller
Table 10.1 I
2
EE_SDA
Input enabled
(to I
Open-drain output
(from I
Pull-down disabled
EEDI
Input enabled
(to Microwire master)
Output disabled
Pull-down enabled
C/Microwire EEPROM controller is an I
EE_SDA/EEDI PIN
controller. Refer to
2
C master)
2
C master)
2
C/Microwire Master Serial Management Pins Characteristics
2
C compatible EEPROMs. The I
Section 10.2.4, "EEPROM Loader"
2
C interface conforms to the Philips I
NOT USED
Input enabled
(used for straps)
Output enabled
(driven low)
EEDO
Input enabled
(used for straps)
Output enabled (from
Microwire master)
DATASHEET
EEDO PIN
138
Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
2
C/Microwire master module which interfaces an optional
2
C/Microwire serial management pins functionality
NOT USED
Input enabled
(used for straps)
Output enabled
(driven low)
EECS
Input enabled
(used for straps)
Output enabled (from
Microwire master)
2
EECS PIN
C/Microwire EEPROM controller supports
for more information.
2
C-Bus Specification .
SMSC LAN9311/LAN9311i
2
EE_SCL/EECLK PIN
EE_SCL
Input enabled
(to I
used for straps)
Open-drain output
(from I
EECLK
Input enabled
(used for straps)
Output enabled (from
Microwire master)
C/Microwire EEPROM
2
C master and
2
C master)
Table
2
C/Microwire
Datasheet
10.1.
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