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ECB-862/862L

Integrated PCI-mastering dual full-duplex direct-sound AC97-link-compatible sound system. Hardware soundblaster-pro and hardware-assisted FM blocks are included for Windows DOS box and real-mode DOS compatibility. Loopback capability is also implemented for directing mixed audio streams into USB and 1394 speakers for high quality digital audio.

Two game ports and one MIDI port

ECP/EPP-capable parallel port

Standard floppy disk drive interface

Distributed DMA capability for support of ISA legacy DMA over the PCI bus. Serial IRQ is also supported for docking and non-docking applications.

Plug and Play controller that allows complete steerability of all PCI interrupts and internal interrupts / DMA channels to any interrupt channel. One additional steerable interrupt channel is provided to allow plug and play and reconfigurability of on-board peripherals for Windows family compliance.

Internal I/O APIC (Advanced Programmable Interrupt Controller)

2.3.4Current PCI Bus Controller

„PCI bus is synchronous / pseudo-synchronous to host CPU bus

„33 MHz operation on the primary PCI bus

„Supports up to five PCI masters

„Peer concurrency

„Concurrent multiple PCI master transactions; i.e., allow PCI masters from both PCI buses active at the same time

„Zero wait state PCI master and slave burst transfer rate

„PCI to system memory data streaming up to 132Mbyte/sec

„PCI master snoop ahead and snoop filtering

„Six levels (double-words) of CPU to PCI posted write buffers

„Byte merging in the write buffers to reduce the number of PCI cycles and to create further PCI bursting possibilities

„Enhanced PCI command optimization (MRL, MRM, MWI, etc.)

„Forty-eight levels (double-words) of post write buffers from PCI masters to DRAM

„Sixteen levels (double-words) of prefetch buffers from DRAM for access by PCI masters

„Supports L1/L2 write-back forward to PCI master read to minimize PCI read latency

ECB-862/862L User’s Manual 9