LAN9217-MT-E2 SMSC [SMSC Corporation], LAN9217-MT-E2 Datasheet - Page 10

• Manufacturer Part Number: LAN9217-MT-E2
• Description: 16-bit High-Performance Single-Chip 10/100 Ethernet Controller with HP Auto-MDIX
• Manufacturer: SMSC [SMSC Corporation]

Revision 1.5 (07-18-06)
1.1
Microprocessor/
Microcontroller
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Embedded
The SMSC LAN9217 integrated 10/100 MAC/PHY controller is a peripheral chip that performs the
function of translating parallel data from a host controller into Ethernet packets. The LAN9217 Ethernet
MAC/PHY controller is designed and optimized to function in an embedded environment. All
communication is performed with programmed I/O transactions using the simple SRAM-like host
interface bus.
The diagram shown above, describes a typical system configuration of the LAN9217 in a typical
embedded environment.
The LAN9217 is a general purpose, platform independent, Ethernet controller. The LAN9217 consists
of four major functional blocks. The four blocks are:
The LAN9217 is driver-, register-, and footprint-compatible with previous generation LAN9118 Family
devices. Drivers written for these products will work with the LAN9217. However, in order to support
HP Auto-MDIX, other components such as the magnetics and the passive components around the
magnetics need to change, and supporting these changes does require a minor PCB change. A
reference design for the LAN9217 will be available on SMSC’s website.
Compatibility with First-generation LAN9118 Family Devices
10/100 Ethernet PHY
10/100 Ethernet MAC
RX/TX FIFOs
Host Bus Interface (HBI)
System Bus
Figure 1.1 System Block Diagram
DATASHEET
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LAN9217
25MHz
XTAL
Peripherals
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10
(Optional)
16-bit High-Performance Single-Chip 10/100 Ethernet Controller with HP Auto-MDIX
EEPROM
MII
Magnetics
LEDS/GPIO
External
Optional
PHY
Magnetics
Optional
SMSC LAN9217
Ethernet
Datasheet