AN985B/BX
General Description
1
General Description
The AN985B/BX is a high performance CARDBUS Fast Ethernet controller with a integrated physical layer
interface for 10BASE-T and 100BASE-TX applications. The AN983B/BX is the environmentally friendly “green”
package version.
The AN985B/BX was designed with 0.25um CMOS technology to provide glueless 32-bit bus master interface for
CARDBUS, boot ROM interface and CSMA/CD protocol for Fast Ethernet, as well as the physical media interface
for 100BASE-TX of IEEE802.3u and 10BASE-T of IEEE802.3. The auto-negotiation function is also supported for
speed and duplex detections.
The AN985B/BX provides both half-duplex and full-duplex operations, as well as support for full-duplex flow
control.
It provides long FIFO buffers for transmission and reception, and an early interrupt mechanism to enhance
performance.
The AN985B/BX also supports ACPI and CARDBUS compliant power management functions and Magic Packet
wake-up event.
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System Block Diagram
Figure 1
System Diagram of the AN985B/BX
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Features
Industry standard
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IEEE802.3u 100BASE-TX and IEEE802.3 10BASE-T compliant
Supports for IEEE802.3x flow control
IEEE802.3u Auto-Negotiation support for 10BASE-T and 100BASE-TX
CARDBUS Interface
ACPI and PCI power management Ver.1.1 compliant
Data Sheet
8
Rev. 1.51, 2005-11-30
INFINEON [ Infineon ]
