22
6-3 UART interface
Flow control:
None- No flow control.
ACK/NAK-When this option is selected, after transmitting data, the engine expects either an ACK
(acknowledge) or NAK (not acknowledge) response from the host. If the engine does not get a
response in this time, it resends its data up to two times before discarding the data and declaring a
transmit error. See the chapter of “7 Serial Communication Interface” for more details.
Inter-character delay: This delay is inserted after each data character transmitted.
Response delay: This delay is used for serial communication of the engine when it waits for a
handshaking acknowledgment from the host.
Parameter name
Para. code
Para. option
Para. value
Parameter
(Para. No.)
Para.
value
Flow control
0x01 0x2D
None
ACK/NAK
Note 1
00
01*
Software
Handshaking (0x9F)
00
01*
Inter-character delay
0x01 0x2E
00-99 ( 1ms)
00*
Intercharacter Delay
(0x6E)
00*
Reserved
0x01 0x2F
-
-
Response delay
0x01 0x30
00-99 (100ms)
00-99
20*
Host Serial Response
Timeout (0x9B)
00-99
20*
Baud rate
0x01 0x31
1200
2400
4800
9600
19200
38400
57600
115200
02
03
04
05*
06
07
08
09
Baud rate(0x9C)
03
04
05
06*
07
08
09
10
Parity
0x01 0x32
None
Odd
Even
00*
01
02
Parity(0x9E)
04*
00
01
Data bit
0x01 0x33
8 bits
7 bits
00*
01
-
－
Stop bit
0x01 0x34
One bit
Two bits
00*
01
Stop Bit Select
(0x9D)
01*
02
Note 1: The engine must use RTS/CTS handshaking to communicate with the host.
F
S
01
& M
S3391-L
Reserved
