NCR 5977 Graphical Display Programming 6-108
Set Font Size
Format
1F 28 67 01 nn
where nn = font size
• 01 — 5x7 dot character
• 02 — 8x16 dot character
Default: nn = 01
Description
This command toggles between a 5x7 dot character and 8x16 dot character. This
command is also required to enable the 16x16 dot double byte character mode.
Note: It is recommended that before sending a displayable character, this command
must be sent first.
Enable/Disable Double Byte Character Mode
Format
1F 28 67 02 nn
where nn = enable/disable double byte mode
• 00 — Disable double byte character mode
• 01 — Enable double byte character mode
Default: nn = 00
Description
This command sets the display to Double Byte character mode.
Note: The command 1F 28 67 01 02 (set font to 8x16 mode) is required before sending
the double byte mode enable command. This is followed by the Double Byte Code Page
Select 1F28 67 0F n to select the desired code page. Refer below for an example.
Select the font size
1F 28 67 01 02
Enable Double Byte Mode
1F 28 67 02 01
Select Double Byte Code Page
1Fh 28h 67h 0Fh 02h
Send Double Byte Character
B0 A2 (double byte character code)
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