Eneo GXC-1720M - Manual (Page 65)

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odd parities, the serial port sets the parity bit (the last bit after the data
bits) to a value to ensure that the transmission has an even or odd
number of logic-high bits.
For example, if the data is 011, for even parity, the parity bit is 0 to keep
the number of logic-high bits even. If the parity is odd, the parity bit is 1,
resulting in 3 logic-high bits.
Stop Bit: Either 1 or 2. It is used to signal the end of communication for a single
packet. The more bits used for stop bits, the greater the lenience in
synchronizing the different clocks but the slower the data transmission
rate. In default mode, the value is 1.