Microchip Technology dsPIC30F - Page 37

© 2004 Microchip Technology Inc. DS70049C-page 2-19
Section 2. CPU
CPU
2
Figure 2-8: DSP Engine Block Diagram
Zero Backfill
Sign-Extend
Barrel
Shifter
40-bit Accumulator A
40-bit Accumulator B
Round Logic
X Data Bus
To/From W Array
Adder
Saturate
Negate
32
32
32
16
16
16
16
40
40
40
40
Y Data Bus
40
16
40
Multiplier/Scaler
17-bit x 17-bit
16-bit to 17-bit
Conversion
Saturation Logic