Technologic Systems TS-3200, Руководство пользователя

Страница: 7 / 28

TS-3200 User’s Manual Technologic Systems
05/21/2009 7
4.3 Flash Expansion
If 896 KB of Flash is insufficient for your application, an empty 32-pin socket is available for Flash
expansion using an M-Systems DiskOnChip 2000 or DiskOnChip Millennium Flash Drive. This product
is a wonder of miniaturization; it is a complete Flash SSD in a single 32 pin package currently available
in sizes from 8 MB up to 288 MB. The DiskOnChip is available from Technologic Systems as well as
other distributors. It is compatible with DOS as shipped, and drivers for other operating systems are
available.
A DiskOnChip of 16 MB or larger is required for the TS-3200 to run under Linux. For the TS-3200,
Technologic Systems offers a complete Linux Operating System configured for a small footprint that
runs under the Linux kernel.
When using the DiskOnChip, it will simply appear as drive C: The DiskOnChip uses the 8 KB range of
D0000h through D1FFF in memory space. If you are installing a PC/104 daughter card that uses
memory mapped I/O, it must not conflict with this address range if the DiskOnChip is installed. If it is
not installed, there will be no conflict
4.4 Battery-Backed SRAM
The 32-pin socket can also optionally hold 32 KB of battery-backed CMOS SRAM memory. This or the
DiskOnChip may be installed, but not both.
Unlike Flash memory, battery backed SRAM provides non-volatile memory with unlimited write cycles
and no write time degradation. The SRAM uses the 32 KB memory range of D0000h through D7FFFh.
If the SRAM is installed, PC/104 daughter cards that uses memory mapped I/O must not conflict with
this address range.