IBM 31x, W2H, 32x manual Dimming, Cursor mode, Screen mode, Input/output device commands, Purpose

11-9-2005 Input/output device commands

Purpose:

The displayed characters from the write-in position to the end position on the same row are erased. The write-in position is not shifted.

Dimming

1B 5C 3F 4C 44 Ps

Purpose:

Luminance can be adjusted into six levels by using this command. The data byte following the command sequence (represented by Ps in the preceding command format), changes the dimming level. When the module is turned on, the level is set to 5 (100%).

Ps		Luminance %
0	(X'30')	0
1 (X'31')		31.6
2 (X'32')		45
3 (X'33')		58.8
4 (X'34')		79.4
5	(X'35')	100 (default)

Cursor mode

1B 5C 3F 4C 43 Ps

Purpose:

This command is only available in 5x7-dot screen mode. The data byte following the command sequence (represented by Ps in the preceding command format), changes the cursor mode. The cursor is always displayed at the write-in position. The cursor is formed by five dots that are located at the bottom of 5x7-dot matrix character font.

Ps Mode

0 (X'30') No lighting (default)

1 (X'31') Blinking

2 (X'32') Lighting

No Lighting The cursor does not display. This is the default setting when power is turned on.

Blinking The cursor flashes ON and OFF every 0.3 seconds at the blank digit.

Lighting The cursor displays. If the write-in position is assigned to the position at which a character is displaying, the cursor displays instead of the character.

Screen mode

1B 5C 3F 4C 53 Ps

Purpose:

The data byte following the command sequence (represented by Ps in the preceding command format), changes the screen mode.

Appendix A. Input/output device commands A-11