SOYO SY-7VCA user manual Serial Ports, Parallel Port, Diskette Drive Controller

Motherboard Description SY-7VCA

⎯Perpendicular recording driver support

⎯Two FDDs with drive swap support

⎯Plug and play with 48 base IO address, 12 IRQ and 4 DMA options

The Setup program provides configuration option for the I/O controller.

1-10.1 Serial Ports

The motherboard has two 9-pin D-Sub serial port connectors located on the back panel. The NS16C5450-compatible UARTs support data transfers at speeds up to 115.2 Kbits/sec with BIOS support.

1-10.2 Parallel Port

The connector for the multimode bi-directional parallel port is a 25-pin D- Sub connector located on the back panel of the motherboard. In the Setup program, there are four options for parallel port operation:

•Compatible (standard mode)

•Bi-directional (PS/2 compatible)

•Bi-directional EPP. A driver from the peripheral manufacturer is required for operation.

•Bi-directional high-speed ECP

1-10.3 Diskette Drive Controller

The I/O controller is software compatible with the 82077 diskette drive controller and supports both PC-AT and PS/2 modes. In the Setup program, the diskette drive interface can be configured for the following diskette drive capacities and sizes.

•360 KB, 5.25-inch

•1.2 MB, 5.25-inch

•720 KB, 3.5-inch

•1.2 MB. 3.5-inch (driver required)

•1.25-1.44 MB, 3.5-inch

•2.88 MB, 3.5-inch

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