DSPIC33FJ64MC508 Microchip Technology Inc., DSPIC33FJ64MC508 Datasheet - Page 20

• Manufacturer Part Number: DSPIC33FJ64MC508
• Description: High-performance, 16-bit Digital Signal Controllers
• Manufacturer: Microchip Technology Inc.

dsPIC33FJXXXMCX06/X08/X10 MOTOR CONTROL FAMILY
2.3
The dsPIC33FJXXXMCX06/X08/X10 Motor Control
Family features a 17-bit by 17-bit, single-cycle multi-
plier that is shared by both the MCU ALU and DSP
engine. The multiplier can perform signed, unsigned
and mixed-sign 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 2-1:
DS70287A-page 18
Control Block
PSV & Table
Data Access
Program Memory
Special MCU Features
Address Latch
Data Latch
23
23
Controller
Interrupt
dsPIC33FJXXXMCX06/X08/X10 MOTOR CONTROL FAMILY CPU CORE BLOCK
DIAGRAM
23
to Various Blocks
Address Bus
Control Signals
Control
Stack
Logic
Instruction
Decode &
PCU
Program Counter
Control
24
8
PCH
Control
Logic
Loop
16
PCL
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 dsPIC33FJXXXMCX06/X08/X10 Motor Control
Family supports 16/16 and 32/16 divide operations,
both fractional 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
Data Latch
W Register Array
Address
Y RAM
Latch
EA MUX
16 x 16
16
16
16
16-bit ALU
16
16
Controller
© 2007 Microchip Technology Inc.
16
DMA
DMA
RAM
16
To Peripheral Modules
16