
3. ELECTRICAL INTERFACE B-63322EN-1/01
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3.1
TRANSMISSION SYSTEM
It is the start-stop system for adding the start bit before and stop bit
after the information bits, respectively.
The format for adding one parity bit to each byte of data to be
transmitted is also allowed.
1) Format with no parity bit
Data bit is sent starting from the LSB.
2) Format with parity bit
Data bit is sent starting from the LSB.
The format with parity bit becomes the even parity including a
parity bit. The number of stop bits of parameter determines
whether there is a parity bit or not.
Stop bit 1 → With parity bit
Stop bit 2 → With no parity bit
b1 b2 b5b4b3 b8b7b6
1 character
Start bit Stop bit
Data bit
ON
OFF
LSB MSB
pb1 b2 b5b4b3 b8b7b6
1 character
Start bit
Data bit
ON
OFF
LSB MSB
Stop bit
Parity bit