19
1.6
Set Software
Flow Control
Response
Dec
Hex
ASCII
254 60
FE 3C
■
<
Xon Xoff
Xon Xoff
Xon Xoff
Sets the values returned for almost full and almost empty messages when in flow control mode. This command
permits the display to utilize standard flow control values of 0x11 and 0x13, note that defaults are 0xFF and 0xFE.
Xon
1 byte, value returned when display buffer is almost empty, permitting transmission to resume
Xoff
1 byte, value returned when display buffer is almost full, signaling transmission to halt
1.7
Set Hardware
Flow Control
Trigger Level
Dec
Hex
ASCII
254 62
FE 3E
■
>
Level
Level
Level
Sets the hardware flow control trigger level. The Clear To Send signal will be deactivated once the number of
characters in the display buffer reaches the level set; it will be reactivated once all data in the buffer is handled.
Level
1 byte, trigger level as below
Table 17: Hardware Flow Control Trigger Levels
Bytes
1 4 8 14
Level
0 1 2
3
Table 18: Flow Control Settings
Flow Control
None Software Hardware
Mode
0
1
2
1.8
Set Flow
Control Mode
Dec
Hex
ASCII
254 63
FE 3F
■
?
Mode
Mode
Mode
Toggles flow control between hardware, software and off settings. Software and Hardware control can be further
tuned using the settings above. Default is Hardware, or 2.
Mode
1 byte, flow control setting as above
