Supero SUPER P3TSSA, Руководство пользователя

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UPER P3TSSA/P3TSSR/P3TSSE User’s Manual
4-18
Output Device Synch/Non-Synch
This option allows you to set the output device as either "Non-Synchro-
nous" (Asynchronous) or Synchronous. "Synchronous" means the output
device will match the frequency of the bus speed. Asynchronous or Non-
Synchronous allows data to be sent and received at a different frequency
than the bus.
Digital Device Priority
Use this option to prioritize the type(s) of display device on your system.
The settings are "CRT/FP/TV", "FP/CRT/TV", "CRT/TV/FP", "TV/CRT/FP",
"FP/TV/CRT" and "TV/FP/CRT." (FP stands for flat panel.)
Init Display Cache Memory
This option allows the Initial Display cache memory to be adjusted. The
setting are "Enabled" and "Disabled."
Paging Mode Control
This option allows the paging mode controls to be adjusted to either
"Close" or "Open."
RAS-to-CAS Latency Override
The RAS-to-CAS Override is adjusted with this option. The settings
are "Disabled" and "Enabled." Disabled: This option allows RAS-to-
CAS. Enabled: This option overrides RAS-to-CAS. SDRAM stores
information in blocks of rows and columns. RAS stands for Row Ad
dress Strobe. CAS stands for Column Address Strobe.
CAS Latency
This option regulates the speed of the Column Address Strobe (CAS)
as either "Fast" or "Slow", which is higher or lower latency. CAS
latency optimizes the speed at which data is accessed in a column by
defining CAS latency time in 100 MHz or 133 MHz clocks (dependent
on the memory bus speed). It controls the time delay (in clocks)
before the SDRAM starts a read command after receiving it.
Reading RAS data can be read twice as fast as reading CAS. Lowering
the latency can increase the speed of the SDRAM, but at the expense of
stability.