lan9303m Standard Microsystems Corp., lan9303m Datasheet - Page 44

• Manufacturer Part Number: lan9303m
• Description: Small Form Factor Three Port 10/100 Managed Ethernet Switch With Dual Mii/rmii/turbo Mii
• Manufacturer: Standard Microsystems Corp.

Revision 1.3 (08-27-09)
PINS
PINS
NUM
NUM
1
1
1
1
1
1
I
I
Interrupt Output
2
2
System Reset
EEPROM I
EEPROM I
C Slave Serial
C Slave Serial
Input/Output
Input/Output
Serial Clock
Serial Data
(I
(I
2
2
Note: Please refer to
NAME
NAME
Mode)
Mode)
Test 1
Test 2
C Slave
C Slave
Clock
Input
Data
regarding serial management configuration and functionality.
2
2
C
C
SYMBOL
SYMBOL
EE_SDA
EE_SCL
Table 3.7 Serial Management/EEPROM Pins
TEST1
TEST2
nRST
SDA
SCL
IRQ
Chapter 8, "Serial Management," on page 113
Table 3.8 Miscellaneous Pins
Small Form Factor Three Port 10/100 Managed Ethernet Switch with Dual MII/RMII/Turbo MII
DATASHEET
BUFFER
BUFFER
O8/OD8
IS/OD8
IS/OD8
IS/OD8
TYPE
TYPE
(PU)
(PD)
IS
IS
AI
IS
44
When the device is accessing an external
EEPROM, this pin is the I
input/output.
In I
input/output from/to the external master.
When the device is accessing an external
EEPROM, this pin is the I
output.
In I
from the external master.
The polarity, source and buffer type of this signal is
programmable via the
Register
"System Interrupts," on page 62
This active low signal allows external hardware to
reset the device. The device also contains an
internal power-on reset circuit. Thus, this signal
may be left unconnected if an external hardware
reset is not needed. When used, this signal must
adhere to the reset timing requirements as detailed
in the
Strap Timing," on page
This pin must be tied to VDD33IO for proper
operation.
This pin must be tied to VSS for proper operation.
2
2
C slave mode, this pin is the I
C slave mode, this pin is the I
Section 14.5.2, "Reset and Configuration
(IRQ_CFG). Please refer to
DESCRIPTION
DESCRIPTION
Interrupt Configuration
365.
2
SMSC LAN9303M/LAN9303Mi
2
C clock input/open-drain
for additional information
C serial data
for further details.
2
2
C serial data
C clock input
Chapter 5,
Datasheet