Microchip Technology MA330026 Data Sheet
dsPIC33FJ16(GP/MC)101/102 AND dsPIC33FJ32(GP/MC)101/102/104
DS70000652F-page 44
2011-2014 Microchip Technology Inc.
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
Bu
s
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