Supero SUPER S2QE6, User Manual

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UPER S2QR6/S2QE6 User's Manual
1-18
Introduction
1-7 Super I/O
The disk drive adapter functions of the Super I/O chip include a floppy disk
drive controller that is compatible with industry standard 82077/765, a data
separator, write pre-compensation circuitry, decode logic, data rate selec-
tion, a clock generator, drive interface control logic and interrupt and DMA
logic. The wide range of functions integrated onto the Super I/O greatly
reduces the number of components required for interfacing with floppy disk
drives. The Super I/O supports four 360 K, 720 K, 1.2 M, 1.44 M or 2.88 M
disk drives and data transfer rates of 250 Kb/s, 500 Kb/s or 1 Mb/s.
It also provides two high-speed, 16550 compatible serial communication
ports (UARTs), one of which supports serial infrared communication. Each
UART includes a 16-byte send/receive FIFO, a programmable baud rate
generator, complete modem control capability and a processor interrupt sys-
tem. Both UARTs provide legacy speed with baud rate of up to 115.2 Kbps
as well as an advanced speed with baud rates of 250 K, 500 K, or 1 Mb/s,
which support higher speed modems.
The Super I/O supports one PC-compatible printer port (SPP), Bi-directional
Printer Port (BPP) , Enhanced Parallel Port (EPP) or Extended Capabilities
Port (ECP).
processor consumes a minimum of 17 amps from 2.8V.
Example: The 2.8V is converted from the su5V and is considered
to be 80% efficient for a 700 MHz processor.
17 amps / 0.8 / 5 x 2.8 = 11.9 amps consumed from the +5V supply
For a system with quad Pentium III Xeon 2.8V processors:
11.9 x 4 = 47.6 amps (for +5V); 47.6 + system components (eg. 10.0 amps)
+ add-on cards + other devices = xamps (for +5V power supplies).
It is strongly recommended that you use a high quality power supply that
meets ATX power supply Specification 2.02 or above. The power supply
you choose should provide two (2) 10-pin power connectors, which should
both be connected to the S2QR6/S2QE6. Also, in areas where noisy power
transmission is present, you may choose to install a line filter to shield the
computer from noise. It is recommended that you also install a power surge
protector to help avoid problems caused by power surges.