LAN9303I-ABZJ View Datasheet(PDF) - SMSC -> Microchip
Part Name
Description
MFG CO.
LAN9303I-ABZJ
SMSC -> Microchip
'LAN9303I-ABZJ' PDF : 366 Pages View PDF
2.2
Block Diagram
MII/Turbo MII to PHY or
MII/RMII/Turbo MII to MAC
Ethernet
10/100
PHY
Registers
MDIO
MII
Ethernet
10/100
PHY
Registers
MII
MDIO
10/100
MAC
10/100
MAC
Switch Engine
Buffer Manager
Search
Engine
Frame
Buffers
10/100
MAC
Switch Fabric
Switch
Registers
(CSRs)
MII
Data
Path
Mode Configuration
Straps
System
Registers
(CSRs)
Register
Access
MUX
Virtual PHY
Registers
MDIO
PHY Management MDIO
Interface (PMI)
MII
Mode
MUX
MDIO
SMI (slave)
Controller
MDIO
I2C Slave
Controller
To optional SMI Master
Mode Configuration
Straps
EEPROM Loader
LAN9303/
LAN9303i
GPIO/LED
Controller
System
Interrupt
Controller
System GP Timer
Clocks/
Reset/PME Free-Run
Controller Clk
EEPROM Controller
I2C
I2C (master)
To optional GPIOs/LEDs
IRQ
External
25MHz Crystal
Figure 2.1 Internal Block Diagram
To optional EEPROM
(via I2C master)
To optional CPU
serial management
(via I2C slave)
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