TVP4020
Programmers Reference Manual
Graphics Register Reference
227
Name:
Packed copy limits
Units:
Framebuffer R/W
Region: 0
Offset:
0x0000.8150
Tag:
0x002A
Reset Value:
Undefined
Read/write
0
8
16
24
31
12 bit integer XStart
Not used
12 bit integer XEnd
Reserved
RelativeOffset
Sets the start and end limits in X for packed copies. Any pixels lying outside the specified
range are not plotted. This test is only active when the PackedData bit in FBReadMode is
enabled.
Bit0-11
XEnd: 12 bit 2's complement value
Bit16-27
XStart: 12 bit 2's complement value
Bit29-31
Relative Offset:
3 bit 2's compliment value which specifies the number of pixels that the
source data has to be adjusted to align with the destination data. The
FBReadMode register
also has this field and the last loaded of these two registers takes effect.
PackedDataLimits
Summary of Contents for TVP4020 PERMEDIA 2
Page 1: ...Texas Instruments TVP4020 PERMEDIA 2 Programmer s Reference Manual Issue 4 ...
Page 284: ...TVP4020 Programmers Reference Manual A Gouraud Shaded Triangle 275 ...
Page 292: ...TVP4020 Programmers Reference Manual Register Tables 283 ...
Page 314: ...TVP4020 Programmers Reference Manual Index 305 ...
Page 315: ...Index TVP4020 Programmers Reference Manual 306 Index ...
Page 323: ...Index TVP4020 Programmers Reference Manual 314 ...