SMJ320C80 Datasheet, PDF (20/157 Pages) Texas Instruments – DIGITAL SIGNAL PROCESSOR

SMJ320C80
DIGITAL SIGNAL PROCESSOR
SGUS025B – AUGUST 1998 – REVISED JUNE 2002
MP general-purpose registers (continued)
Signed Byte
31
7
0
SSSSSSSSSSSSSSSSSSSSSSSSS I I I I I I I
MS
LS
Unsigned Byte
31
7
0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 UUUUUUUU
MS
LS
31
15
0
Signed Halfword S S S S S S S S S S S S S S S S S I I I I I I I I I I I I I I I
MS
LS
Unsigned
Halfword
31
15
0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 UUUUUUUUUUUUUUUU
MS
LS
S Sign bit(s)
I Signed byte/halfword value
U Unsigned byte/halfword value
MS Most significant
LS Least signficant
Figure 6. MP Register 8-Bit and 16-Bit Data Formats
31
0
Odd Register
Most Significant 32-Bit Word
MS
31
Even Register
0
Least Significant 32-Bit Word
LS
Odd Register
31
19
0
S E E E E E E E E E E E MMMMMMMMMMMMMMMMMMMM
MS
31
0
Even Register M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M
LS
S Sign bit(s)
E Exponent
I Signed byte/halfword value
U Unsigned byte/halfword value
MS Most significant
LS Least signficant
Figure 7. MP Register 64-Bit Data Formats
20
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