Bit or 64-bit pci bus master, Asic with embedded risc processor – Allied Telesis AT-2972T/2 User Manual
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Chapter 4: Key Protocols and Interfaces
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32-bit or 64-bit
PCI Bus Master
Compliant with PCI Local Bus Rev 2.2, the PCI interface on the Gigabit
Ethernet Adapter is compatible with both 32-bit and 64-bit PCI buses. As a
bus master, the adapter requests access to the PCI bus, instead of waiting
to be polled.
ASIC with
Embedded RISC
Processor
The core control for the Gigabit Ethernet Adapter resides in a tightly
integrated, high-performance ASIC. The ASIC includes dual RISC
processors. This provides the flexibility to add new features to the card
and adapt it to future network requirements via a software download. This
also enables the adapter drivers to exploit the built-in host offload
functions on the adapter as host operating systems are enhanced to take
advantage of these functions.