GTCO Summagrid IV - Users Guide Part 3 - Manual (Page 29)

Summagrid IV 29
Flag Bit Definitions for the Stylus and Four-Button Cursor
Sx and Sy
T
PR
PH
X0, X1…
Y0, Y1…. X and Y coordinate signs. 1 is positive and 0 is negative. In absolute
coordinates, the sign is always positive. In relative coordinates, the sign can
be positive or negative.
Tablet identifier. Choice of 1 or 0 and command is controlled.
Proximity bit. 0 is in-prox and 1 is out-of-prox.
Phasing bit, which is always 1.
X coordinate bits
Y coordinate bits.