Matrix Orbital GLK24064-16-1U - Manual (Page 21)

16
1.5 Turn Flow
Control On Dec
Hex
ASCII 254 58
FE 3A
■ :
Full Empty
Full Empty
Full Empty
Enables simple flow control. The display will return a single byte (254) to the host when the display buffer is
almost full and a different byte (255) when the buffer is almost empty. Full value should provide enough room for
the largest data packet to be received without buffer overflow. No data should be sent to the display between full
and empty responses to permit processing. Buffer size is 128 bytes. Not available in I
2
C. Default off.
Full 1 byte, number of bytes remaining before buffer is completely full, 0 < Full < Empty < 128
Empty 1 byte, number of bytes remaining before buffer can be considered empty enough to accept more data
1.6 Turn Flow
Control Off Dec
Hex
ASCII 254 59
FE 3B
■ ;
Disables flow control. Bytes sent to the display may be permitted to overflow the buffer resulting in data loss.