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TMS320C80GF Datasheet(PDF) 23 Page - Texas Instruments

Part # TMS320C80GF
Description  DIGITAL SIGNAL PROCESSOR
PDF  171 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TMS320C80GF Datasheet(HTML) 23 Page - Texas Instruments

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TMS320C80
DIGITAL SIGNAL PROCESSOR
SPRS023B – JULY 1994 – REVISED OCTOBER 1997
20
POST OFFICE BOX 1443
• HOUSTON, TEXAS 77251–1443
MP general-purpose registers (continued)
31
70
Signed Byte
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
I
I
I
I
I
I
I
MS
LS
31
70
Unsigned Byte
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
U
U
U
U
U
U
U
U
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
31
15
0
Unsigned
Halfword
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
Halfword
MS
LS
Figure 6. MP Register 8-Bit and 16-Bit Data
31
0
Odd Register
Most Significant 32-Bit Word
MS
31
0
Even Register
Least Significant 32-Bit Word
LS
Double-Precision
31
19
0
Double Precision
Floating-Point
S
E
E
E
E
E
E
E
E
E
E
E M M M M M M M M M M M M M M M M M M M M
Odd Register
MS
Double-Precision
31
0
Double Precision
Floating-Point
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
Even Register
LS
Figure 7. MP Register 64-Bit Data
MP double-precision floating-point accumulators
There are four double-precision floating-point registers (see Figure 8) to accumulate intermediate floating-point
results.
64
0
a0
Accumulator 0
a1
Accumulator 1
a2
Accumulator 2
a3
Accumulator 3
MSB
LSB
Figure 8. Double-Precision Floating-Point Accumulators



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