ES-U-1001-R10(R100) Premier Gold USB-RS232 Adapter cable Data Sheet
Version 1.1
Document Reference No.: CP_000057 Clearance No.: CP#047
Copyright © Connective Peripherals Pte Ltd
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2.8
Programmable Receive Buffer Timeout
The receive buffer timeout is used to flush remaining data from the receive buffer. This time
defaults to 16ms, but is programmable over USB in 1ms increments from 1ms to 255ms, thus
allowing the device to be optimised for protocols that require fast response times from short data
packets.
2.9
Baud Rates
The FT232R supports all standard baud rates and non-standard baud rates from 300 Baud up to 3
Mbaud. Achievable non-standard baud rates are calculated as follows -
Baud Rate = 3000000 / (n + x)
Where n can be any integer between 2 and 16,384 (= 214) and x can be a sub-integer of the value
0, 0.125, 0.25, 0.375, 0.5, 0.625, 0.75, or 0.875. When n = 1, x = 0, i.e. baud rate divisors with
values between 1 and 2 are not possible.
This gives achievable baud rates in the range 183.1 baud to 3,000,000 baud. When a non-standard
baud rate is required simply pass the required baud rate value to the driver as normal, and the FTDI
driver will calculate the required divisor, and set the baud rate. See application note
more details.
The ES-U-1001-R10 cable is limited to a maximum of 1 Mbaud because of the line driver within the
circuit.
