I/O Controller; Serial Ports; Diskette Drive Controller - Intel ISP1100 Product Manual

I/O Controller

The FDC37B807 I/O controller from SMSC is an ISA Plug and Play-compatible, multifunctional
I/O device that provides the following features (see Chapter 13 in the Intel ISP1100 Internet Server
Technical Product Specification for Plug and Play specification information):
Two serial ports.
Interface for one 1.2 MB, 1.44 MB, or 2.88 MB diskette drive.
Three-mode diskette drive support (driver required).
FIFO support on both serial and diskette drive interfaces.
One parallel port with extended capabilities port (ECP) and enhanced parallel port (EPP)
support.
PS/2-style mouse and keyboard interfaces.
Support for serial IRQ packet protocol.
Intelligent power management, including:
Shadowed write-only registers for ACPI compliance.
Programmable wake up event interface.
The BIOS Setup program provides configuration options for the I/O controller.

Serial Ports

The server board has two 9-pin D-Sub serial port connectors; one on the back panel and one on the
front panel under the bezel. The front-panel serial port is connected in parallel with the serial port
B D-Sub connector located on the back panel. The serial port NS16C550-compatible UARTs
support data transfers at speeds up to 115.2 Kbits/sec with BIOS support. The serial ports can be
assigned as COM1 (3F8h), COM2 (2F8h), and COM3 (3E8h).

Diskette Drive Controller

The I/O controller supports a single diskette drive that is compatible with the 82077-diskette drive
controller and supports both PC-AT
interface can be configured for the following 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
NOTE
The I/O controller supports 1.2 MB, 3.5-inch diskette drives, but a special
driver is required (three-mode).
Description
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and PS/2 modes. In the Setup program, the diskette driver
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