User`s manual

Quatech CompactFlash Card User’s Manual SSCF-200/300
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5.6 NOTES ON SERIAL DATA THROUGHPUT
The maximum serial baud rate of 921KBits/sec does not imply that the maximum sustained
throughput rate of the serial port will be as high. The actual throughput rate that can be achieved
depends on many factors including the host PC speed, the serial data source’s data block size and
whether the block are “back-to-back”, whether the interrupt in use on the host is being shared by
other devices leading to increased latency, etc.
As a simple rule of thumb, using the standard serial drivers on a fast PC will allow throughput rates
of 400-600KBits/sec although these rates can’t be guaranteed and will be application specific.
5.7 BAUD RATE SETTINGS
The table below illustrates the common baud rate values available for each of the baud rate
multiplier switch positions:
HOST SETTING SWITCH = x1 SWITCH = x8
300 300 2400
1200 1200 9600
2400 2400 19200
4800 4800 38400
9600 9600 76800
19200 19200 153600
38400 38400 307200
57600 57600 460800
115200 115200 921600