adm6992c Infineon Technologies Corporation, adm6992c Datasheet - Page 19

• Manufacturer Part Number: adm6992c
• Description: Two Port Bridge Fiber To Fast Ethernet Converter
• Manufacturer: Infineon Technologies Corporation

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The NINJA C/CX (ADM6992C/CX) integrates two 100Base-X physical layer devices (PHY), two complete
10BaseT modules, a two-port 10/100 switch controller and memory into a single chip for both 10Mbps and 100
Mbps Ethernet switch operation. It also supports 100Base-FX operations through external fiber-optic transceivers.
The device is capable of operating in either Full-Duplex or Half-Duplex mode in both 10 Mbps and 100 Mbps
operation. Operation modes can be selected by hardware configuration pins, software settings of management
registers, or determined by the on-chip auto negotiation logic.
The NINJA C/CX (ADM6992C/CX) consists of four major blocks:
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3.1
The 100Base-X section of the device implements the following functional blocks:
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The 10Base-T section of the device implements the following functional blocks:
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The 100Base-X and 10Base-T sections share the following functional blocks:
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The interfaces used for the communication between the PHY block and switch core is a MII interface.
An Auto MDIX function is supported. This function can be Enabled/Disabled using the hardware pin. A digital
approach for the integrated PHY of the NINJA C/CX (ADM6992C/CX) has been adopted.
Data Sheet
OAM Engine
10/100M PHY Block
Switch Controller Block
Built-in 6Kx64 SSRAM
100Base-X physical coding sub-layer (PCS)
100Base-X physical medium attachment (PMA)
100Base-X physical medium dependent (PMD)
10Base-T physical layer signaling (PLS)
10Base-T physical medium attachment (PMA)
Clock synthesizer module
MII Registers
IEEE 802.3u auto negotiation
Function Description
10/100M PHY Block
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Function Description
Rev. 1.02, 2005-11-25
ADM6992C/CX
Ninja C/CX