dspic33fj128mc706at-i-pt Microchip Technology Inc., dspic33fj128mc706at-i-pt Datasheet - Page 26

• Manufacturer Part Number: dspic33fj128mc706at-i-pt
• Description: High-performance, 16-bit Digital Signal Controllers
• Manufacturer: Microchip Technology Inc.

feature a 17-bit by 17-bit, single-cycle multiplier that is
multiplier can perform signed, unsigned and mixed sign
dsPIC33FJXXXMCX06A/X08A/X10A
3.3
The
shared by both the MCU ALU and DSP engine. The
multiplication. Using a 17-bit by 17-bit multiplier for 16-bit
by 16-bit multiplication not only allows you to perform
mixed sign multiplication, it also achieves accurate
results for special operations, such as (-1.0) x (-1.0).
FIGURE 3-1:
DS70594A-page 24
Control Block
PSV & Table
Data Access
dsPIC33FJXXXMCX06A/X08A/X10A
Program Memory
Special MCU Features
Address Latch
Data Latch
23
23
Controller
Interrupt
dsPIC33FJXXXMCX06A/X08A/X10A CPU CORE BLOCK DIAGRAM
23
to Various Blocks
Control Signals
Control
Stack
Logic
Instruction
Decode &
PCU
Program Counter
Control
24
8
PCH
Control
Logic
Loop
16
PCL
devices
Preliminary
Divide Support
DSP Engine
16
Y Data Bus
X Data Bus
Instruction Reg
Data Latch
ROM Latch
Address Generator Units
Address
X RAM
Latch
The
support 16/16 and 32/16 divide operations, both frac-
tional and integer. All divide instructions are iterative
operations. They must be executed within a REPEAT
loop, resulting in a total execution time of 19 instruction
cycles. The divide operation can be interrupted during
any of those 19 cycles without a loss of data.
A 40-bit barrel shifter is used to perform up to a 16-bit
left or right shift in a single cycle. The barrel shifter can
be used by both MCU and DSP instructions.
16
16
dsPIC33FJXXXMCX06A/X08A/X10A
Data Latch
W Register Array
Address
Y RAM
Latch
EA MUX
16 x 16
16
16
16
16-Bit ALU
16
16
© 2009 Microchip Technology Inc.
16
16
Controller
DMA
RAM
DMA
To Peripheral Modules
devices
16