Supero SUPER P6DGH, User Manual

Page: 24 / 113

1-14
SUPER P6DGH User’s Manual
The SUPER P6DGH accommodates both AT and ATX power sup-
plies. Although most power supplies generally meet the specifica-
tions required by the CPU, some are inadequate. To obtain the
highest system reliability, be certain that your AT power supply pro-
vides +5 VDC with a voltage range b4.95 VDC (minimum)
and +5.25 VDC (maximum) and a current rating of 25 A or above.
It is highly recommended that you use a high quality power supply.
Additionally, 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 pro-
tector to help avoid problems caused by power surges. For serious
workstation/server applications, it is highly recommended that us-
ers employ the secondary power connector PW5 (for AT power) or
J36 (for ATX power) to ensure balanced power distribution.
1-7 Winbond Super I/O Controller
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, de-
code logic, data rate selection, a clock generator, drive interface
control logic and interrupt and DMA logic. The wide range of func-
tions integrated into the Super I/O chip 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 serial communication ports
(UARTs), one of which can support serial infrared communication.
Each UART includes a 16-byte send/receive FIFO, a programmable
baud rate generator, complete modem control capability and a pro-
cessor interrupt system. Both UARTs provide legacy speed with
baud rates up to 115.2 Kbps as well as advanced speed with baud
rates of 230 K, 460 K, or 921 Kbps, which support higher speed
modems.