Chapter 2
16
This board contains a USB Host controller and includes
a root hub with two USB ports (meets USB Rev 1.0 spec.).
Two USB peripherals or hub devices are able to be
connected.
Compatibility with different USB peripherals is
still being tested.
2-5 Main Memory Configuration
The DRAM memory system on board consists of 3 banks, and the memory range is
8 ~ 256 MBytes. You must install 2 SIMM modules(same size, same speed, either
single or double sided) in each bank at a time. It does not matter which bank you
install first.
DRAM Specifications
Types Supported
FP(Fast Page), EDO(Extended Data Output) and
Synchronous DRAM
Speed requirement
FP/EDO: 70-ns (or faster) for 50 or 60MHz system
frequency and 60-ns for 66MHz system
frequency.
SDRAM: 10/12ns
Module types & sizes
4/8/16/32/64 MBytes, single/double-sided, 5v SIMM
8/16/32/64 MBytes, single/double-sided, 3.3v DIMM
Parity
Both parity and non-parity modules may be used
however the parity function is not supported by this
mainboard.
SIMM
72-pin 5V SIMM
Qty.
Bank0
(SIMM1,SIMM2)
4/8/16/32/64 FPM or EDO SIMM
(DIMM sockets must be empty)
x2
Bank2
(SIMM3,SIMM4)
4/8/16/32/64 FPM or EDO SIMM
(DIMM sockets must be empty)
x2
DIMM
168-pin 3.3V unbuffered DIMM
Qty.
Bank0 (DIMM1)
8/16/32/64/128 MB EDO or SDRAM
(SIMM sockets must be empty)
x 1
Bank1 (DIMM2)
8/16/32/64/128 MB EDO or SDRAM
(SIMM sockets must be empty)
x 1
