MDI-4000 Series Serial Interface Manual
4.1.3 UART Basic Information
These are the basic UART Settings.
UART Settings
None, BUSY/READY, Modem, ACK/NAK
Flow control, Inter character delay
4.1.4 Baud Rate (Transfer Speed)
The baud rate is the rate at which bits are transmitted from the scan engine to the host and vice
versa. Both the reader and the host must be set to the same baud rate.
To activate and save the new configuration, you need to use the Z2 command (save settings in
non-volatile memory).
Note: You should configure these settings at “Custom Factory Default.”
Baud Rate Commands
See “Sending Command Packets” on page 7.
4.1.5 Character Format
When data characters are transferred, a parity bit of 1 or 0 is added to each character so that
the total number of 1’s in the data bits is either even (even parity) or odd (odd parity).
Figure 12: Data Character Transfer Format
LSB MSB
TxD/RxD
Start Bit
(1)
Data Bits
(7/8)
Stop Bit
(1/2)
Parity Bit
(0/1)