70291E Datasheet, PDF (34/436 Pages) Microchip Technology – High-Performance, 16-bit Digital Signal Controllers

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04
FIGURE 3-3:
DSP ENGINE BLOCK DIAGRAM
40
40-bit Accumulator A
40-bit Accumulator B
Carry/Borrow Out
Saturate
Carry/Borrow In
Adder
Negate
S
a
40
Round
t
u
16
Logic r
a
t
e
40
40
40
Barrel
Shifter ¹⁶
40
Sign-Extend
32
16
Zero Backfill
33
32
17-bit
Multiplier/Scaler
16
16
To/From W Array
DS70291E-page 34
© 2011 Microchip Technology Inc.