GL310MC4D Datasheet, PDF (13/18 Pages) List of Unclassifed Manufacturers – GL310MC PS/2 4D Mouse Controller

GL310MC PS/2 4D Mouse Controller
4.6.2 Extended Microsoft IntelliMouse packet format
When mouse devices are in extended mode, they send their mouse data in a 4-byte data packet.
The packet is the typical standard PS/2 3-byte packet plus one additional byte containing the wheel
data denoted as Z in the following table.
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
0
0
Y7
X7
1
Middle Right Left
X delta
Y delta
Z delta
W delta
12
Revision 1.0 July/16/1998