LAN9313I SMSC [SMSC Corporation], LAN9313I Datasheet - Page 85
LAN9313I
Manufacturer Part Number
LAN9313I
Description
Three Port 10/100 Managed Ethernet Switch with MII
Manufacturer
SMSC [SMSC Corporation]
Datasheet
1.LAN9313I.pdf
(398 pages)
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Three Port 10/100 Managed Ethernet Switch with MII
Datasheet
SMSC LAN9313/LAN9313i
7.2
To MII Mux
To Port x
Switch Fabric MAC
Functionally, each PHY can be divided into the following sections:
Note 7.1
A block diagram of the Port x PHYs main components can be seen in
Port 1 & 2 PHYs
MDIO
MII
100BASE-TX Transmit
10BASE-T Transmit
PHY Auto-negotiation
HP Auto-MDIX
MII MAC Interface
PHY Management Control
Registers
Interface
Negotiation
PHY Management
Because the Port 1 PHY and Port 2 PHY are functionally identical, this section will describe
them as the “Port x PHY”, or simply “PHY”. Wherever a lowercase “x” has been appended
to a port or signal name, it can be replaced with “1” or “2” to indicate the Port 1 or Port 2
PHY respectively. All references to “PHY” in this section can be used interchangeably for
both the Port 1 & 2 PHYs. This nomenclature excludes the Virtual PHY.
MAC
MII
Auto-
Control
Interrupt Controller
To System
Interrupts
Figure 7.1 Port x PHY Block Diagram
and
and
10BASE-T Receive
100BASE-TX Receive
Transmitter
Reciever
10/100
10/100
DATASHEET
To GPIO/LED
85
Controller
LEDs
HP Auto-MDIX
From
System Clocks Controller
PLL
Figure
TXPx/TXNx
RXPx/RXNx
7.1.
Revision 1.2 (04-08-08)
To External
Port x Ethernet Pins
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