Microchip Technology MA330018 Data Sheet
© 2007-2012 Microchip Technology Inc.
DS70291G-page 31
dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04
FIGURE 3-3:
DSP ENGINE BLOCK DIAGRAM
Zero Backfill
Sign-Extend
Barrel
Shifter
40-bit Accumulator A
40-bit Accumulator B
40-bit Accumulator B
Round
Logic
X Dat
a Bus
To/From W Array
Adder
Saturate
Negate
32
32
33
16
16
16
16
40
40
40
40
S
a
t
u
r
a
t
e
Y Dat
a Bus
40
Carry/Borrow Out
Carry/Borrow In
16
40
Multiplier/Scaler
17-bit