LAN9313-NZW SMSC, LAN9313-NZW Datasheet - Page 161

• Manufacturer Part Number: LAN9313-NZW
• Description: Ethernet ICs Three Port 10/100 Ethernet Switch
• Manufacturer: SMSC
• Type: Three Port Managed Ethernet Switchr

Specifications of LAN9313-NZW

• Ethernet Connection Type: 10 Base-T, 100 Base-TX
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Product: Ethernet Switches
• Number Of Transceivers: 1
• Standard Supported: 802.3, 802.3u
• Data Rate: 10 Mbps, 100 Mbps
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 0 V
• Supply Current (max): 155 mA, 270 mA
• Maximum Operating Temperature: + 70 C
• Package / Case: TQFP-100
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Three Port 10/100 Managed Ethernet Switch with MII
Datasheet
SMSC LAN9313/LAN9313i
30:28
27:19
BITS
EEPROM Controller Command (EPC_COMMAND)
This field is used to issue commands to the EEPROM controller. The
EEPROM controller will execute a command when the EPC_BUSY bit is set.
A new command must not be issued until the previous command completes.
The field is encoded as follows:
Note:
The EEPROM operations are defined as follows:
READ (Read Location)
This command will cause a read of the EEPROM location pointed to by the
EPC_ADDRESS bit field. The result of the read is available in the
Register
EWDS (Erase/Write Disable)
(Microwire mode only) - When this command is issued, the EEPROM will ignore erase
and write commands. To re-enable erase/writes operations, issue the EWEN
command.
EWEN (Erase/Write Enable)
(Microwire mode only) - Enables the EEPROM for erase and write operations. The
EEPROM will allow erase and write operations until the EWDS command is sent, or
until the power is cycled. The Microwire EEPROM device will power-up in the
erase/write disabled state. Any erase or write operations will fail until an EWEN
command is issued.
WRITE (Write Location)
If erase/write operations are enabled in the EEPROM, this command will cause the
contents of the
location selected by the EPC_ADDRESS field. For Microwire, erase/write operations
must be enabled in the EEPROM.
WRAL (Write All)
(Microwire mode only) - If erase/write operations are enabled in the EEPROM, this
command will cause the contents of the
written to every EEPROM memory location.
ERASE (Erase Location)
(Microwire mode only) - If erase/write operations are enabled in the EEPROM, this
command will erase the location selected by the EPC_ADDRESS field.
ERAL (Erase All)
(Microwire mode only) - If erase/write operations are enabled in the EEPROM, this
command will initiate a bulk erase of the entire EEPROM.
RELOAD (EEPROM Loader Reload)
Instructs the EEPROM Loader to reload the device from the EEPROM. If a value of
A5h is not found in the first address of the EEPROM, the EEPROM is assumed to be
un-programmed and the RELOAD operation will fail. The CFG_LOADED bit indicates
a successful load. Following this command, the device will enter the not ready state.
The READY bit in the
to determine then the RELOAD is complete.
RESERVED
[30]
0
0
0
0
1
1
1
1
(E2P_DATA).
Only the READ, WRITE and RELOAD commands are valid for I
If an unsupported command is attempted, the EPC_BUSY bit will be
cleared and EPC_TIMEOUT will be set.
EEPROM Data Register (E2P_DATA)
Hardware Configuration Register (HW_CFG)
[29]
0
0
1
1
0
0
1
1
DESCRIPTION
[28]
0
1
0
1
0
1
0
1
EEPROM Data Register (E2P_DATA)
DATASHEET
161
to be written to the EEPROM
Operation
RELOAD
ERASE
WRITE
EWDS
EWEN
READ
WRAL
ERAL
EEPROM Data
should be polled
2
C mode.
to be
TYPE
R/W
RO
Revision 1.7 (06-29-10)
DEFAULT
000b
-