Renesas公司的RX23T系列是32位RX mcu,工作频率40MHz,内置浮点处理单位(FPU),适合复杂的逆变器控制算法编程,40MHz时的性能为65.6 DMIPS,集成了具有三个S/H电路,两个数据寄存器和比力器的12位ADC和40MHz PWM,工作电压2.7V-5.5V,非常适适用于逆变器的控制.本文先容了RX23T主要特点,框架图,RX23T入门板RSK主要特点,结构图,元件结构图和内部毗连图以及详细电路图.
The RX23T Group is 32-bit microcontroller and suited for single inverter control and has a built-in FPU (floating-point processing unit) that enables it to easily program complex inverter control algorithms. This helps to greatly reduce the man-hours required for software development and maintenance. Furthermore, thanks to the RX200 core the current consumed in software standby mode (with RAM retention) is a mere 0.45 μA. RX23T microcontrollers operate in a broad voltage range from 2.7 V to 5.5 V, which is useful for inverter control, and are highly compatible with the RX62T Group at the pin arrangement and software level.
RX23T主要特点:
■ 32-bit RX CPU core
Max.operating frequency:40MHzCapable of 65.6 DMIPS in operation at 40 MHz
Enhanced DSP: 32-bit multiply-accumulate and 16-bitmultiply-subtract instructions supported
Built-in FPU: 32-bit single-precision floating point(compliant to IEEE754)
Divider (fastest instruction execution takes two CPU clockcycles)
Fast interrupt
CISC Harvard architecture with 5-stage pipeline
Variable-length instructions, ultra-compact code
On-chip debugging circuit
Memory protection unit (MPU) supported
■ Low power design and architecture
Operation from a single 2.7-V to 5.5-V supply
Three low power consumption modes
■ On-chip code flash memory, no wait states
128-/64-Kbyte capacities
On-board or off-board user programming
■ On-chip SRAM, no wait states
12 Kbytes of SRAM
■ DMA
DTC: Four transfer modes
■ Reset and supply management
Seven types of reset, including the power-on reset (POR)
Low voltage detection (LVD) with voltage settings
■ Clock functions
Main clock oscillator frequency: 1 to 20 MHz
External clock input frequency: Up to 20 MHz
PLL circuit input: 4 MHz to 12.5 MHz
On-chip low-speed oscillator, on-chip high-speedoscillator, dedicated on-chip oscillator for the IWDT
Clock frequency accuracy measurement circuit (CAC)
■ Independent watchdog timer
15-kHz on-chip oscillator produces a dedicated clocksignal to drive IWDT operation.
■ Useful functions for IEC60730 compliance
Self-diagnostic and disconnection-detection assistancefunctions for the A/D converter,clock frequency accuracymeasurement circuit, independent watchdog timer,RAMtest assistance functions using the DOC, etc.
■ MPC
Multiple locations are selectable for I/O pins of peripheralFunctions
■ Up to 4 communications channels
SCI with many useful functions (2 channels)Asynchronous mode, clock synchronous mode, smart cardinterface mode, simplified SPI, simplified I2C, andextended serial mode.
I2C bus interface: Transfer at up to 400 kbps (one channel)
RSPI capable of high speed connection (one channel)
■ Up to 12 extended-function timers
16-bit MTU3: 40MHz operation, input capture, outputcompare, three-phase complementary PWM output, CPUefficientcomplementary PWM, phase counting mode (sixchannels)
8-bit TMRs (4 channels),
16-bit compare-match timers (4 channels)
■ 12-bit A/D converter: 10ch
On-chip sample-and-hold circuit: 12bit × up to 3 channels
Sampling time can be set for each channel
Self-diagnostic function and analog input disconnectiondetection assistance function (compliant to IEC60730)
ADC: three sample-and-hold circuits, double dataregisters, comparator (3 channels)
■ Register write protection function can protectvalues in important registers againstoverwriting.
■ Up to 50 pins for general I/O ports
5-V tolerant, open drain, input pull-up
■ Operating temperature range
40 to +85 C
40 to +105 C
RX23T应用:
General industrial and consumer equipment
图1.RX23T框架图
RX23T入门板RSK
The Renesas Starter Kit for RX23T is the perfect starter kit for developers who are new to the RX23T.
The kit includes an LCD display module, on-chip debugging emulator, and integrated development environment so you can start evaluating the RX23T immediately after opening the box.
图2.RX23T入门板RSK外形图
RX23T入门板RSK主要特点:
Such as IIC and SCI the communication function can be evaluated.
Including sample codes (Sample programs will be available in Renesas Web site). Easy to understand coding technique.Required IBM-PC compatible PC (need USB interface, Intel Pentium III 600MHz over),OS:Windows 8/7/Vista
RX23T入门板RSK主要指标:
图3.RX23T入门板RSK结构图
图4.RX23T入门板RSK顶层元件结构图
图5.RX23T入门板RSK底层元件结构图
图6.RX23T入门板RSK内部毗连框架图
图7.RX23T入门板RSK电路图(1)
图8.RX23T入门板RSK电路图(2)
图9.RX23T入门板RSK电路图(3)
图10.RX23T入门板RSK电路图(4)
图11.RX23T入门板RSK电路图(5)
图12.RX23T入门板RSK电路图(6)
详情请复制打开此衔接地址:
http://documentation.renesas.com/doc/products/mpumcu/doc/rx_family/r01ds0248ej0110_rx23t.pdf
和http://documentation.renesas.com/doc/products/mpumcu/rx200/r20ut3318eg0100_rskrx23t_usermanual.pdf
以及http://documentation.renesas.com/doc/products/mpumcu/rx200/r20ut3317eg0100_rskrx23t_schema.pdf
r01ds0248ej0110_rx23t.pdf
r20ut3317eg0100_rskrx23t_schema.pdf
r20ut3318eg0100_rskrx23t_usermanual.pdf
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