LAN9311 Datasheet, PDF (32/461 Pages) SMSC Corporation – Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface

Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
Datasheet
Table 3.5 EEPROM Pins (continued)
BUFFER
PIN
NAME
SYMBOL
TYPE
DESCRIPTION
EEPROM
Microwire
Serial Clock
EECLK
O8
EEPROM Microwire Serial Clock (EECLK): In
Microwire EEPROM mode (EEPROM_TYPE = 0),
this pin is the Microwire EEPROM clock output.
EEPROM I²C
Serial Clock
EE_SCL
IS/OD8
EEPROM I²C Serial Clock (EE_SCL): In I²C
EthEePIR_{2COMEEmPoRdOeM(EcEloPcRkOinMp_uTt/oYpPeEn=-d1r)a, itnhiosuptpinuti.s}
99
Note: If I²C is selected, an external pull-up is
required when using an EEPROM and is
recommended if no EEPROM is attached.
EEPROM
Size Strap 1
EEPROM_SIZE_1
IS
Note 3.5
EEPROM Size Strap 1: Configures the high bit of
the EEPROM size range as specified in Section
10.2, "I2C/Microwire Master
on page 138. This bit is not
uEsEePdRfOorMI^{2CController,"}
EEPROMs. See Note 3.4.
EEPROM
Microwire
Chip Select
101
EECS
O8
EEPROM Microwire Chip Select: In Microwire
EEPROM mode (EEPROM_TYPE = 0), this pin is
the Microwire EEPROM chip select output.
Note: In I²C mode (EEPROM_TYPE=1), this pin
is not used and is driven low.
EEPROM
Size Strap 0
EEPROM_SIZE_0
IS
Note 3.3
EEPROM Size Strap 0: Configures the low bit of
the EEPROM size range as specified in Section
10.2, "I2C/Microwire Master EEPROM Controller,"
on page 138. See Note 3.4.
Note 3.3
Note 3.4
Note 3.5
The IS buffer type is valid only during the time specified in Section 15.5.2, "Reset and
Configuration Strap Timing," on page 446.
Configuration strap values are latched on power-on reset or nRST de-assertion.
Configuration strap pins are identified by an underlined symbol name. Refer to Section
4.2.4, "Configuration Straps," on page 40 for more information.
The IS buffer type is valid only during the time specified in Section 15.5.2, "Reset and
Configuration Strap Timing," on page 446 and when in I²C mode.
Revision 2.0 (02-14-13)
32
DATASHEET
SMSC LAN9311/LAN9311i