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pcmouse(7)							    pcmouse(7)

NAME    [Toc]    [Back]

     pcmouse - mouse specifications

DESCRIPTION    [Toc]    [Back]

     Indy, Indigo2, O2,	OCTANE and Onyx2 systems uses an industry standard PC
     (6-pin mini-DIN) mouse port.  All newer SGI systems now use this mouse
     port which	allows easy attachment of third	party mice, trackballs,	or
     other pointing devices.

   Compatibility    [Toc]    [Back]
     Third-party mouse-port-compatible (also called "PS/2 compatible,"
     "Pointing Device Port" or "PDP") pointing devices commonly	sold into the
     IBM PC-compatible market can be used.  Note that the common Microsoftcompatible
	serial mice do not work	on the mouse port.  Three-button
     devices are preferred, but	two-button devices operate as if the middle
     button does not exist.

     The following mice	have been tested (many only briefly):

	  SGI PS/2 mice
	  IBM PS/2 Model 6450350 (old style)
	  IBM PS/2 Model 33G5430 (new style)
	  IBM RS/6000 P/N 11F8895 (Logitech M-SB9-6MD)
	  Alps Glidepoint (PS/2	mouse port version)
	  Logitech MouseMan Serial & Mouseport Version
	  Logitech TrackMan Serial & Mouseport Version
	  Logitech M-SE9-6MD
	  Logitech M-SF15-6MD
	  Microsoft Mouse Serial & PS/2	Version	(only two buttons)
	  MicroSpeed MicroTRAC trackball (only two buttons)
	  Mouse	Systems	White Mouse
	  Mouse	Systems	PC Mouse III (in two button mode only)

   Protocol    [Toc]    [Back]
     The PS/2 mouse uses a three-byte data block.  The first byte is a control
     byte with the format: YO XO YS XS F M R L where [XY]O is an overflow
     indicator,	[XY]S is the sign of the delta bytes, F	is floats depending on
     the particular mouse used,	and M R	L are middle, right, and left buttons
     (1	indicates pressed) respectively.  Byte two is the X delta and byte
     three is the Y delta.

   Pinout    [Toc]    [Back]
     The mouse connector is a 6	pin mini-DIN connector with the	shield
     connected to the system chassis:

				     / 5 3  \
				    | ---  1 |
				    | ---  2 |
				     \ 6 4  /

									Page 1

pcmouse(7)							    pcmouse(7)

				 1  | Data
				 2  | Reserved
				 3  | Signal Ground
				 4  | Power +5V
				 5  | Clock
				 6  | Reserved

NOTES    [Toc]    [Back]

     All Silicon Graphics systems, except those	noted above use	the mouse
     described in mouse(7).

     Some Silicon Graphics mice	(particularly Silicon Graphics PN 9150800)
     look very similar to the old style	Indigo2	mouse (Silicon Graphics	PN
     9150809) and even use the same 6-pin mini-DIN connector, but are not

SEE ALSO    [Toc]    [Back]

     prom(1M), keyboard(7), mouse(7), pckeyboard(7).

									PPPPaaaaggggeeee 2222
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