Via Vt82C686B Ata-6 Controller; Via Vt82C686B Flash Interface; Table 2-1: Supported Hdd Specifications - IEI Technology WAFER-MARK User Manual

2.5.1 VIA VT82C686B ATA-6 Controller

The single WAFER-MARK IDE connector supports two ATA-6 HDDs. An ATA-6 (Ultra
ATA/100) compliant IDE controller on the VIA VT82C686B has a maximum transfer rate of
100MB/s. ATA-6 includes advancements in error checking and ATA-6 drives are
compatible with future interface additions.
The onboard ATA-6 controller is able to support the following IDE HDDs:
Ultra ATA/100, with data transfer rates up to 100MB/s
Ultra ATA/66, with data transfer rates up to 66MB/s
Ultra ATA/33, with data transfer rates up to 33MB/s
Specification
IDE devices
PIO Mode
PIO Max Transfer Rate
DMA/UDMA designation
DMA/UDMA Max Transfer
Controller Interface

Table 2-1: Supported HDD Specifications

2.5.2 VIA VT82C686B Flash Interface

The WAFER-MARK CompactFlash socket supports standard CF Type I and CF Type II
cards. The chipset flash interface is multiplexed with an IDE interface and can be
connected to an array of industry standard NAND Flash or NOR Flash devices.
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WAFER-MARK 3.5" Embedded SBC
Ultra ATA/100 Ultra ATA/66
2 2
0 – 4 0 – 4
16.6 MB/s 16.6 MB/s
UDMA 3 - 4 UDMA 3 – 4
100MB/s 66MB/s
5V 5V
Ultra ATA/33
2
0 – 4
16.6 MB/s
UDMA 2
33MB/s
5V