1 . 4
Summary of Functions
Table 1-1 summarizes the functions of the Q2.
Table 1-1 Summary of Q2 Functions
I t e m
Maximum
Drawing system internal
clock
operation (operating clock)
frequency
Display system internal
operation (display dot clock)
Drawing performance
Display
Sample screen sizes
functions
CRT scanning system
External synchronization
Display colors
Drawing
Drawing
functions
commands
Coordinate systems
Color representation
8
Function/Performance
Multiplication on: 33 MHz × 1, 16.5 MHz ×
2, 8.25 MHz × 4
Multiplication off: 33 MHz
Operating clock/2
Polygon drawing performance (20 × 25 pixels):
15,000/sec
Line drawing performance (10 dots): 300,000/sec
320 × 240 dots (standard size in non-interlace
operation)
640 × 480 dots (standard size in interlace & video
operation)
Non-interlace, interlace, interlace sync & video
Master, TV synchronization
256 colors (selectable from 260,000) or 65,536
colors
Drawing
4-vertex surface drawing, line drawing, work
related
surface drawing, work line drawing
Register
Current pointer setting, local offset setting,
setting related
clipping
Sequence
Jump, subroutine
control related
Drawing coordinate system: Rendering
coordinates, work coordinates
Source coordinate system: Binary source
coordinates. multi-valued source coordinates
Drawing coordinate system: 8 or 16 bits/pixel
Source coordinate system: 1 bit/pixel, 8 or 16
bits/pixel