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dSMC101 Datasheet Preview

dSMC101 Datasheet

digital Smart Motion Controller

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dSMC 101
Product Information
digital Smart Motion Controller, dSMC®
Description
The dSMC® is a programmable peripheral cir-
cuit, which includes all components needed for
digital control of inverter systems for induction
motors.
A versatile Host Port Interface connects the
dSMC to a host processor (micro-controller,
microcomputer or DSP).
An universal serial interface allows the connec-
tion of common A-D Converters to the dSMC -
according to the special application.
dSMC® is a registered trademark of sci-worx GmbH
Characteristics
32 Bit Signal Processing Unit with 25 MIPS
instruction set optimised for control applica-
tions
integrated data (512 x16 Bit) and program
(2048 x 26 Bit) memory
universal Host Port Interface 8, 16, 32 Bit
vector PWM with optimised output voltage
static and modulated power switch outputs
integrated dead time compensation
synchronous serial interface for connection to
absolute encoders (EnDAT™ protocol) or
other peripherals
three universal digital encoder interfaces
generation of rectangular or sinusoidal pri-
mary excitation of resolvers
one emulation output of a digital encoder
universal serial link to A-D Converters or
Data Acquisition Systems (SPI, Microwire or
SSI compatible)
asynchronous serial interface to absolute
encoders with HIPERFACE® protocol
Version 1.0




sci-worx

dSMC101 Datasheet Preview

dSMC101 Datasheet

digital Smart Motion Controller

No Preview Available !

dSMC® 101
dSMC DSP core for control applications
The DSP core of the dSMC can perform fast calculations which are typically needed for motion control
tasks. The structure of the DSP and its instruction set are optimised to perform digital closed loop control
operations.
The dSMC incorporates a powerful arithmetic logical unit (ALU) which can calculate a 16 x 16 Bit multiply
together with a 32 Bit accumulation in (max.) two cycles.
During these register operations data can be moved between registers of the processor and data memory
or peripheral registers (parallel move operation). The data transfers can be 16 or 32 Bit wide.
The dSMC supports 16 or 32 Bit signed or unsigned integer variables. Add and substract operations can
generate an overflow or can automatically be adjusted to the specified range. Furthermore single bits can
be checked and modified.
The instruction set of the dSMC contains the following standard instructions:
arithmetic operations (add, substract, multiply, multiply and accumulate, divide, square root)
compare
shift operations
bit manipulations
jumps
Especially digital control algorithms have their own characteristics. Therefore the dSMC owns a special-
ised instruction set which is ideally suited for these algorithms. These instructions include limit functions
for control variables, instructions for evaluation of rotary encoder signals and calculation of switching
times of the power switches.
Universal Host Port Interface
The Host Port Interface connects the dSMC to a host processor. The host can access the internal pro-
gram, data and peripheral registers through the Host Port. The Host Port can be configured in the follow-
ing main characteristics, allowing easy interfacing to all common microcontrollers and DSPs:
8 / 16 / 32 Bit data bus width
Intel or Motorola style bus protocol
multiplexed or non-multiplexed address and data lines
Little or Big Endian data format
The host access is synchronised internally. A data transfer acknowledge signal indicates a successful
transfer. Two interrupt outputs of the dSMC can be configured to signal various events to the host.
Program and data memory of the dSMC
The program and the data of the dSMC is stored in its integrated static memory. The memory is in fact
dual-ported, so the host processor is able to access program, data and peripheral space of the dSMC
without latencies. Access violations are resolved by the arbitration logic. An external ready signal signals
the actual status to the host.
Interface to Position Sensors
© sci-worx GmbH
2


Part Number dSMC101
Description digital Smart Motion Controller
Maker sci-worx
Total Page 4 Pages
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