GTCO Summagrid IV - Users Guide Part 2 - Manual (Page 21)

Summagrid IV 21
Character Definition
LSB
MSB
PR
T
PH
P
SB
F Least significant bit
Most significant bit
Proximity 0 when in proximity and 1 when out-of-prox
Tablet area identifier, set to 0
Phasing bit, set for 1
Parity bit
One or two stop bits
Flag bit, identifying the transducer buttons being pressed. The
possible combinations are listed in the table below.
X0 to X15
Y0 to Y15
X0 to Y0
X15 to Y15
Sx and Sy X coordinate bits
Y coordinate bits
Least significant digits
Most significant digits
Sign bits for each coordinate where 0 is positive and 1 is negative