參數(shù)資料
型號： TMS320C240PQL
英文描述： 16-Bit Microcontroller
中文描述： 16位微控制器
文件頁數(shù)： 42/105頁
文件大?。?/td> 1481K
代理商： TMS320C240PQL
TMS320C240, TMS320F240
DSP CONTROLLERS
SPRS042D – OCTOBER 1996 – REVISED NOVEMBER 1998
42
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
full compare units
There are three full compare units on TMS320x240. These compare units use GP timer1 as the timebase and
generate six outputs for compare and PWM-waveform generation using programmable deadband circuit. The
state of each of the six outputs is configured independently. The compare registers of the compare units are
double-buffered, allowing programmable change of the compare/PWM pulse widths as needed.
programmable-deadband generator
The deadband generator circuit includes three 8-bit counters and an 8-bit compare register. Desired deadband
value (from 0 to 102 s) can be programmed into the compare register for the outputs of the three compare units.
The deadband generation can be enabled/disabled for each compare unit output individually. The
deadband-generator circuit produces two outputs (with or without deadband zone) for each compare unit output
signal. The output states of the deadband generator are configurable and changeable as needed by way of the
double-buffered ACTR register.
simple compares
TMS320x240 is equipped with three simple compares that can be used to generate three additional
independent compare or high-precision PWM waveforms. GP timer1 or 2 can be selected as the timebase for
the three simple compares. The states of the outputs of the three simple compares are configurable as
low-active, high-active, forced-low, or forced-high independently. Simple compare registers are
double-buffered, allowing programmable change of the compare/PWM pulse widths as needed. The state of
the simple-compare outputs is configurable and changeable as needed by way of the double-buffered SACTR
register.
compare/PWM waveform generation
Up to 12 compare and/or PWM waveforms (outputs) can be generated simultaneously by TMS320x240: three
independent pairs (six outputs) by the three full compare units with programmable deadbands three
independent compares or PWMs (three outputs) by the simple compares, and three independent compare and
PWMs (three outputs) by the GP-timer compares.
compare/PWMs characteristics
Characteristics of the compare/PWMs are as follow:
16-bit, 50-ns resolutions
Programmable deadband for the PWM output pairs, from 0 to 102 s
Minimum deadband width of 50 ns
Change of the PWM carrier frequency for PWM frequency wobbling as needed
Change of the PWM pulse widths within and after each PWM period as needed
External maskable power and drive-protection interrupts
Pulse-pattern-generator circuit, for programmable generation of asymmetric, symmetric, and four-space
vector PWM waveforms
Minimized CPU overhead using auto-reload of the compare and period registers
capture unit
The capture unit provides a logging function for different events or transitions. The values of the GP timer 2
counter and/or GP timer 3 counter are captured and stored in the two-level first-in first-out (FIFO) stacks when
selected transitions are detected on capture input pins, CAPx for x = 1, 2, 3, or 4. The capture unit of the
TMS320x240 consists of four capture circuits.
相關PDF資料
PDF描述
TMS320C240PQQ 16-Bit Microcontroller
TMS320F240PQL 16-Bit Microcontroller
TMS320F240PQQ 16-Bit Microcontroller
TMS320F240PQS 16-Bit Microcontroller
TMS320LC31-40 Digital Signal Processor
相關代理商/技術參數(shù)
參數(shù)描述
TMS320C240PQQ 制造商:未知廠家 制造商全稱:未知廠家 功能描述:16-Bit Microcontroller
TMS320C241 制造商:未知廠家 制造商全稱:未知廠家 功能描述:16-Bit Digital Signal Processor
TMS320C241FNS 制造商:未知廠家 制造商全稱:未知廠家 功能描述:16-Bit Digital Signal Processor
TMS320C241PGS 制造商:未知廠家 制造商全稱:未知廠家 功能描述:16-Bit Digital Signal Processor
TMS320C242 制造商:TI 制造商全稱:Texas Instruments 功能描述:DSP CONTROLLER
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