DIWSTRT

         These registers control the display window size and position,
         by locating the upper left and lower right corners.

BIT# 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 USE V7 V6 V5 V4 V3 V2 V1 V0 H9 H8 H7 H6 H5 H4 H3 H2
DIWSTRT is vertically restricted to the upper 2/3 of the display (V8=0) and horizontally restricted to the left 3/4 of the display (H8=0).
DIWSTOP is vertically restricted to the lower 1/2 of the display (V8=/V7) and horizontally restricted to the right 1/4 of the display (H8=1).
SEE ALSO: DIWHIGH, DDFSTRT, STOP
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