VIA Fire VT6320 PCI Combo Controller

Designed for mobile PC and embedded system platforms where low profile is essential, the VT6320 PCI Combo Controller is highly interoperable with a range of flash media, providing card vendors with the utmost flexibility to design versatile, ultra-compact systems that enable customers to read and transfer data from any of five flash card formats. The chip integrates two controllers on one piece of silicon: one is an IEEE 1394a-2000 OHCI link layer controller with integrated 400 Mbps 1 port 1394a PHY, and the other is a 5-in-1 flash card reader controller that supports SecureDigital (SD), MultiMediaCard (MMC), MemoryStick (MS/MSpro), xD PictureCard (XD), SmartMedia (SM), and SDIO host interfaces.

VT6320's 1394 OHCI Host Controller provides high performance serial connectivity by implementing Link and PHY layers for both IEEE 1394 and 1394a High Performance Serial Bus specification. It is compliant with 1394 OHCI rev. 1.1 with DMA engine support for high performance data transfer via a 32-bit bus master PCI host bus interface.

The VT6320 PCI Combo Controller supports industry-standard IEEE 1394 peripheral connections and it can support 100, 200 and 400 Mbit per sec transmission via an integrated PHY. VT6320 services two types of data packets: asynchronous and isochronous (real time). The 1394 link core performs arbitration requesting, packet generation and checking, bus cycle master operations, and also has root node capability and performs retry operations.

The 1394a function of the VT6320 combo controller is supported by the Microsoft OHCI driver, which is built in Windows 98 Second Edition, Windows ME, Windows 2000, Windows XP, Windows 2003 server, and Windows Vista.

For card reader function the VT6320 PCI Combo Controller provides VIA's highly compatible combo card reader drivers to the most popular operating systems, that includes Windows 2000, XP, Server2003, Vista, and  Linux 2.4.x/2.6.x. Furthermore, the Windows drivers of VIA card reader have certificated by Microsoft DTM and got Windows XP/Vista logo, including x86 and x64 platforms, and includes an enable/disable function allowing specific cards to be switched on or off,  providing the most flexibility for system requirement.

Specifications

PCI BUS and Basic Function Specifications

• Full compliance with PCI v2.3 specification
• Compliance with PCI bus power management specification v1.1
• Supports power states D0, D1, D2, D3hot, and D3cold
• Supports PCI Multi-Function and designs for Microsoft Windows
• Function enable/disable among 1394/xD/MMC/MS/SDIO
• Supports I2C EEPROM
• EEPROM contains other hardware configuration
• Supports Shadow EEPROM mechanism

1394 Function Specifications

• Single chip compliance with IEEE 1394a-2000, 1394-1995 and 1394a Open HCI host controller integrated 1-port PHY layer function
• Compliance with 1394 Open HCI specification 1.0 and 1.1
• Compliance with IEEE 1394-1995 specification release 1.0
• Compliance with IEEE 1394a P2000
• Fully Compliant 1394a-2000 PHY register map
• Provide 4 isochronous transmit contexts
• Provide 4 isochronous receive contexts
• Data transfers of 100/200/400MHz
• General DMA controller control mechanism and I/F design
• 3-deep physical post write queue
• 4-deep physical response queue
• GUID PROM shadow to EEPROM
• Single supply Link and PHY; doesn’t support repeater mode

Card Reader Function Specifications

• Complete System Solution for Card Interfaces
• Secure DigitalTM (SD)
• Supports to SD-HC
• Multi Media CardTM (MMC)
• Supports to MMC-HC
• Memory StickTM (MS)
• Supports to MS PRO and MS PRO-HG
• xD Picture CardTM (XD)
• Smart MediaTM (SM)
• SDIO Host Controller
• Compliance with SDIO card specification rev. 1.1
• Compliance with SD host controller standard card specification rev. 1.0
• Secure Digital(SD) / Multi Media Card(MMC) Interfaces
• Compliance with SD memory card specification rev. 1.0/1.1
• Supports 4-bit and 1-bit Secure Digital interface
• Supports SD and SPI mode transmission
• Compliance with MMC interfaces specification to ver. 4.2
• Command transmit and response receive can be enabled separately
• Supports multiple block transaction with stop command
• Supports different clock rate from 375 KHz to 50 MHz
• MemoryStick(MS) / MemoryStick Pro(MS Pro) Interfaces
• Compliance with MS standard format specification  ver:1.3/1.4/1.42
• Compliance with MS Pro format Specification ver:1.0/1.02
• Supports 4-bit and 1-bit MS Pro interface
• Fully supports Memory Stick Pro TPCs
• Supports multi-page access
• Supports flash command timeout detection
• xD PictureCard(XD) / SmartMedia(SM) Interfaces
• Compliance with xD Picture card specification  ver. 1.2 / v1.2b
• Compliance with xD Picture card host guideline specification  ver. 1.2
• Compliance with SmartMedia Logical Format Specifications ver.1.04
• Supports address up to 5 bytes with different access speeds
• Supports multi-sector read operation
• Supports high speed programming (multi-block erase and multi-block program)
• Dedicated LED indicators for card reader

Power and Clock Specifications

• Supports CLKRUN to enhance power management for mobile PCs
• Operates from a 3.3V power supply while maintaining 5V tolerant inputs
• Built-in dedicated power switch for xD, MMC, MS, and SD(low voltage)
• Build in 3.3V to 2.5V regulator
• 3.3V and 2.5V I/O support
• 2KV ESD protection
• Supports 24.576 MHz(for 1394) and 25/50 MHz(for card reader) crystal oscillator

Package Type

• 14mm x 14mm. 128 pin LQFP