Three Port 10/100 Managed Ethernet Switch with MII
Datasheet
Table 2.1 LAN9313/LAN9313i Modes
I2C/SPI
I2C/MICROWIRE
EEPROM
INTERFACE
MII_MODE_
STRAP
VALUE
MNGT_MODE_
STRAP[1:0]
VALUE
SLAVE
SMI/MIIM
INTERFACE
MODE
INTERFACE
MAC Mode
Unmanaged
Used to load initial
configuration from
EEPROM
Not used
Not used
Not used
0
0
00
MAC Mode
SMI Managed
Used to load initial
configuration from
EEPROM and for
CPU R/W access to
EEPROM
SMI/MIIM slave,
used for CPU
access to internal
PHYs and non-PHY
registers
01
MAC Mode
Used to load initial
configuration from
EEPROM and for
CPU R/W access to
EEPROM
I2C slave
SPI slave
Not used
Not used
MIIM master,
used for CPU
access to external
PHY registers
0
0
1
1
10
11
00
01
I2C Managed
MAC Mode
SPI Managed
Used to load initial
configuration from
EEPROM and for
CPU R/W access to
EEPROM
MIIM master,
used for CPU
access to external
PHY registers
PHY Mode
Unmanaged
Used to load initial
configuration from
EEPROM
Virtual MIIM slave,
used for external
MAC access to
Virtual PHY
registers
PHY Mode
SMI Managed
Used to load initial
configuration from
EEPROM and for
CPU R/W access to
EEPROM
SMI/MIIM slave,
used for CPU
access to internal
PHYs, Virtual PHY,
and non-PHY
registers
PHY Mode
Used to load initial
configuration from
EEPROM and for
CPU R/W access to
EEPROM
I2C slave
SPI slave
Virtual MIIM slave,
used for external
MAC access to
Virtual PHY
1
1
10
11
I2C Managed
registers
PHY Mode
SPI Managed
Used to load initial
configuration from
EEPROM and for
CPU R/W access to
EEPROM
Virtual MIIM slave,
used for external
MAC access to
Virtual PHY
registers
Revision 1.2 (04-08-08)
SMSC LAN9313/LAN9313i
DATA2S4HEET
SMSC [ SMSC CORPORATION ]
