VT100.net: Digital VT220 Programmer Reference Manual

Table 4-6 Selectable Modes Summary
Name	Mnemonic	Set Mode	Reset Mode*
* The last character of each sequence is lowercase L (6/12).
† User preference feature
Keyboard action†	KAM	Locked `CSI 2 h`	Unlocked `CSI 2 l`
Insert/ replace	IRM	Insert `CSI 4 h`	Replace `CSI 4 l`
Send/ receive	SRM	Off `CSI 12 h`	On `CSI 12 l`
Line feed/ new line	LNM	New Line `CSI 20 h`	Line Feed `CSI 20 l`
Cursor key	DECCKM	Application `CSI ? 1 h`	Cursor `CSI ? 1 l`
ANSI/VT52	DECANM	N/A	VT52 `CSI ? 2 l`
Column	DECCOLM	132 Column `CSI ? 3 h`	80 Column `CSI ? 3 l`
Scrolling†	DECSCLM	Smooth `CSI ? 4 h`	Jump `CSI ? 4 l`
Screen†	DECSCNM	Reverse `CSI ? 5 h`	Normal `CSI ? 5 l`
Origin	DECOM	Origin `CSI ? 6 h`	Absolute `CSI ? 6 l`
Auto wrap	DECAWN	On `CSI ? 7 h`	Off `CSI ? 7 l`
Auto repeat†	DECARM	On `CSI ? 8 h`	Off `CSI ? 8 l`
Print form feed	DECPFF	On `CSI ? 18 h`	Off `CSI ? 18 l`
Print extent	DECPEX	Full Screen `CSI ? 19 h`	Scrolling Region `CSI ? 19 l`
Text cursor enable	DECTCEM	On `CSI ? 25 h`	Off `CSI ? 25 l`
Keypad	DECKPAM DECKPNM	Application `ESC =`	Numeric `ESC >`
Character set	DECNRCM	National `CSI ? 42 h`	Multinational `CSI ? 42 l`