VIA Technologies, Inc.

Preliminary VT83C469

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The VIA VT83C469 is a highly integrated PC Card socket controller chip that implements the PCMCIA 2.0/JEIDA

4.1 specifications. The chip is register compatible with the INTEL 82365SL and supports two PC card sockets with a

fully buffered PCMCIA interface. No external buffer is required between the ISA bus and PCMCIA bus. For systems

requiring more than two sockets, the VT83C469 can be cascaded to support up to eight sockets without external

logic. Under EEPROM IO resource data, the VT83C469 can support unlimited sockets under ISA Plug and Play

mode

In addition, the VT83C469 offers a jumperless configuration mechanism which allows the system manufacturer to

set up a configuration (CONFIG.SYS) driver for PC card setup.

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Single chip PCMCIA controller between ISA bus and PCMCIA bus

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Full ExCA implementation of two PCMCIA 2.0/JEIDA 4.1 PC Card sockets

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Register-compatible with INTEL 82365SL

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Supports memory cards, I/O cards and DMA cards

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Supports PCMCIA-ATA disk interface

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8 or 16-bit CPU interface

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8 or 16-bit PCMCIA interface support

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High integration without any external logic or buffers

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Five mappable memory windows and two I/O windows for each socket

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Pin to Pin compatibility with Vadem VG-468

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208 PQFP/Two sockets support

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Plug and Play ISA specifications version 1.0 with EEPROM

 Supports dynamic relocation of address space to avoid conflicts with system resources.

 Supports multiple PCMCIA controllers

 Features easy interface and design for docking stations

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Mixed voltage operation

 Support 3.3v or 5v PCMCIA socket interface

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Support PC card DMA operation

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Dual configuration for drive bay: socket controller can be located either on motherboard/ISA plug-in board

or in the drive bay housing

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Support up to 8 sockets without external decoding