Serious Integrated SIM225 Technical Reference Manual Download Page 45

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SIM225 Technical Reference Manual

SIM225_TRM_A1ENUS

Revision A1

RX_SSLB0#

RX MCU

RSPI1

Slave Select

14 P31/SSLB0#

USB1DP

USB Device Data+. Also on

PCB Edge Connector

Tag-Connect

Programming Port

FFC Expansion Connector

15 USB1DP

USB1DM

USB Device Data+. Also on

PCB Edge Connector

Tag-Connect

Programming Port

FFC Expansion Connector

16 USB1DM

RX_TXD6

GPIO or RX UART6 Tx

17 P00/TXD6

RX_RXD6

GPIO or RX UART6 Rx

18 P01/RXD6

RX_GPIO4

GPIO or CAN0 Tx

19 P32/CTX0

RX_GPIO3

GPIO or CAN0 Rx

20 P33/CRX0

RX_GPIO2

GPIO or Digital To Analog Port 1. See

Audio: DAC Outputs

21 P05/DA1

RESET#

System Reset (wired-or with Reset switch)

22 RESET#

+5V_MAIN

Output of BQ24030 (driven by any/all of +5V_EXT, USB power,

battery power). See

Power Sources

RX_AUDIO_OUT

GPIO or Digital To Analog Port 0. See

Audio: DAC Outputs

24 P03/DA0

GND

Ground

GND

Ground

There is no legacy full-level RS232 port on the SIM225 however a simple and inexpensive adaptor (such as
the

CircuitMonkey.com USB-Serial TTL Adapter

) can be easily attached to the one of the Baseboard

Connector’s UARTs to enable full serial-over-USB communications to a PC. Alternatively, a common
RS232 chip (like the venerable

MAX232

or similar) can boost the 3.3V UART levels to traditional RS232

voltages.

PCB EDGE CONNECTOR

The SIM225 and many other new Serious Integrated Modules contain a special PCB Edge Connector
primarily used for software development, SIM manufacturing, and
volume (re)programming. It features the full signals of the JTAG

port, USB device port,

primary UART, as well as
power in/out connections.

Many applications only use
the first 20 pins with the

Samtec MEC6-110-02-L-D-RA1-TR

mating connector. These same

20 pins are available on other SIMs, including the SIM110. Some
applications will use all the pins with the 40-pin

Samtec MEC6-

120-02-L-D-RA1-TR

mating connector. Not all SIMs have these

extra pins.

The PCB Edge Connector is not polarized or keyed.

Connecting it backwards may damage your SIM and/or

connected equipment.

The PCB Edge Connector is designed as a unified connector across a variety of SIM families, including
those based on the Renesas

RX62N/RX621

as well as

RX63N/RX631

MCUs. These MCUs have a variety of

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Summary of Contents for SIM225

Page 1: ... Serious Integrated Inc SIM225_TRM_A1ENUS Revision A1 SIM225 TECHNICAL REFERENCE MANUAL PRELIMINARY ADVANCE INFORMATION Downloaded from Arrow com ...

Page 2: ...t applicable specifications are met SERIOUS makes no representations or warranties with respect to the accuracy or completeness of the information and may make changes to the information specifications and product descriptions at any time without notice Designers should not rely on the absence or characteristics of any features or instructions marked reserved or undefined SERIOUS reserves these fo...

Page 3: ...ants with LiPo Support 11 Variants without LiPo Support 11 Subsystem DC Power Characteristics 12 MCU I O 12 AC Timing Characteristics 12 Environmental Characteristics 13 Physical Characteristics 13 Hardware Overview 16 High Performance Renesas RX MCU 16 Graphic Color LCD Display with Direct Drive and Touch Option 16 On Module Peripherals 17 On Module Memory 17 Communications and Connectors 17 Powe...

Page 4: ...2 LCD Panel Backlight Power 32 USB Host Power 33 Clock Calendar Battery Power 33 Memory 34 Serial FLASH 34 SDRAM 34 EEPROM 35 Serialization and Variant Version Identification 35 Universial Serial Bus USB 36 Device IDs 37 Software 37 Device Port USB1 37 Embedded Host Port USB0 38 Audio 39 Piezo Sounder 39 DAC Outputs 39 Speaker Amplifier 40 Temperature Sensing 40 MCU On Chip Temperature Sensor 40 P...

Page 5: ...tch and LEDs 43 Connectors 44 Baseboard Connector 44 PCB Edge Connector 45 Tag Connect Programming Port 47 Power and Communications Connector 48 LiPo Battery Switch Connector 49 USB Mini B Device Connector 49 USB A Host Connector 50 FFC Expansion Connector 50 JTAG Connector 51 Additional Information 51 Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Ar...

Page 6: ...le WARNING You can damage your board damage attached systems overheat or cause things to catch fire if you do not heed these warnings Notes with this symbol are related to license and associated legal issues you need to understand to use this software We re big believers in honoring license agreements so please help the industry by respecting intellectual property ownership Some hardware features ...

Page 7: ...nsor RTCC On Module Memory o 8 16MB SDRAM o 8 16MB serial FLASH 2Kbit EEPROM Extensive I O o 24 Pin FFC Expansion Connector GPIO 5V RESET UART RMII on 63N based units o Serious 7 pin system to system Power and Communications Connector o 26 Pin Baseboard Connector GPIO 5V RESET 2xUART I2C SPI audio CAN and more o 14 Pin JTAG Connector o USB Mini B Device Connector o USB A Host Connector o Tag Conne...

Page 8: ...C based GUI design tools and rapid GUI prototyping development and deployment With minimal coding you can create attractive and functional GUIs in a fraction of the time of traditional C based development See www seriousintegrated com SHIP for details It is very difficult to know as a designer selecting the hardware for a graphic touch interface if the result after many months of software and grap...

Page 9: ...ombined with front panel buttons and indicators All user configuration and operation is managed by the existing baseboard and its software Rather than completely redesigning the hardware and software of the existing OEM system the old front panel can be replaced by a simple UART Power connection to one of the SIM225 s connectors The designer can then architect inter board messages such as pump is ...

Page 10: ...ent from the USB connection when in operation The demo will start running and displaying info on the LCD screen For more getting started information and out of the box tips see www seriousintegrated com oob Several connectors may be used to power the SIM225 See Power Supplies Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arr...

Page 11: ...rnal current draw from the module is in addition to this value 2 At minimum voltage on supply 3 At typical input supply voltage 4 LiPo Status N not draining nor charging or not present C Charging D Draining VARIANTS WITHOUT LIPO SUPPORT The following DC characteristics apply only to all variants without LiPo capabilities including the SIM225 A01 A02 A03 and A04 Specification LCD Backlight State US...

Page 12: ...Min Typ Max LCD Backlight 800 850 85 941 1000 USB Host 375 750 90 417 833 Audio 700 1000 100 700 1000 3V3 Elements MCU SDRAM SFLASH RTCC Temp Sensor LCD etc 630 1200 92 685 1304 Battery Charging 5V_USBF 2500 100 2500 Battery Charging 5V_EXT 4750 100 4750 MCU I O Many I O signals on the SIM225 are directly and exclusively connected to RX MCU pins Consult the RX63N RX631 data sheet for complete spec...

Page 13: ...r dimensions of the SIM225 are approximately 116 x 94 x 15 mm Mechanical drawings and SolidWorks STEP models are available for most SIMs Visit www seriousintegrated com docs for more information Depending on the family member the depth may be smaller The cross sectional dimensions of the SIM225 A00 are as follows Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloa...

Page 14: ...d are shown here for reference Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com ...

Page 15: ...om Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com ...

Page 16: ...y The pixel data must be delivered at approximately 60Hz per complete frame by the MCU and stored and managed in the SDRAM attached to the MCU The RX631 63N MCU family has no hardware graphics engine but rather implements a Direct Drive architecture whereby the MCU s DMA timers and other peripherals are used to deliver pixel data directly from SDRAM to the LCD at the specific timing required by th...

Page 17: ...al SDRAM COMMUNICATIONS AND CONNECTORS The SIM225 has numerous off module communication ports and connectors Some may or may not be available on specific SIM225 family members 26 Pin Baseboard Connector with extensive I O including SPI I2C CAN and high speed UART ports USB device connections Power input output GPIO DA0 DA1 mono stereo audio and or general purpose DAC outputs PCB Edge Connector for...

Page 18: ...d Renesas E1 E10 and Segger J Link programmer debuggers Tag Connect port for a convenient in service programming capability POWER The SIM225 module can be powered in several ways USB Device Power 5V_USBF available on numerous different connectors if present USB Mini B connector PCB Edge Connector Tag Connect Baseboard Connector Downloaded from Arrow com Downloaded from Arrow com Downloaded from Ar...

Page 19: ...ire as much as 500mA from the USB power supply so ensure that the USB hub or USB power supply can deliver enough power The SIM225 can support concurrent connection from some of these supplies See the Power Supplies for details Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from A...

Page 20: ...oint Unit FPU 16 32 bit registers Fast context switching interrupt response including a dedicated fast interrupt Peripherals include Two USB 2 0 ports one device one host Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow...

Page 21: ... 128KB CAN MCU BOOT MODES SWITCH S4 AND THE USB BOOT FLASH Three separate FLASH memory areas are available inside the RX MCU Program FLASH Data FLASH and USB Boot Mode FLASH as well as one Boot Mode ROM Three boot modes are available on the RX631 RX63N MCU family based on the state of the MD and PC7 pins when the RESET signal is released Depending on which of the three boot modes is determined at ...

Page 22: ...l firmware designed to function with the Serious Human Interface Platform tools enabling reprogramming of the SHIPEngine and Serial FLASH with new GUI cargo files The algorithm in this firmware is proprietary and when the SIM225 boots in USB Boot mode the USB port will identify itself as requiring up to 500mA of bus power and having USB Vendor ID 0x25D8 registered exclusively to Serious and USB Pr...

Page 23: ...s pin to enable backlight dimming A PWM driven by a typical 1 KHz clock with 16 PWM steps for a PWM net frequency of 64 Hz is generally sufficient and flicker free with duty cycles from 0 to 100 In no circumstances should the PWM clock exceed 16 KHz The Serious Human Interface Platform has the backlight driver included setting the platform glass backlight value to 0 to 100 automatically modulates ...

Page 24: ...h provides better Direct Drive performance and uses less pins and software overhead than VSYNC HSYNC mode In DEN mode the LCD s VSYNC and HSYNC pins are both always pulled inactive and the DEN signal when active indicates when data is being clocked into the LCD panel DEN is inactive a minimum of 45 clocks between lines allowing the 480 pixel line previously clocked into the chip to be driven to th...

Page 25: ...U sleep modes where a panel touch needs to wake up the CPU and the system and as a quick test to see if more detailed coordinate reading is needed Basic touch testing requires only the ADC pins The ADC pins connected through current limiting resistors to the touch panel can be configured dynamically by software to be low current outputs or ADC inputs To do a basic are we touched test on the SIM225...

Page 26: ...XL PG2 LO TOUCH_XL DRIVE_YT PG3 LO TOUCH_YT When a signal e g DRIVE_XR is activated the corresponding touch signal is strongly driven to the state indicated This allows a full voltage range across the panel so 12 bit ADC values from 0x0000 to 0x0FFF can be read and mapped to the screen coordinates Touch panel algorithms are beyond the scope of this document but an Internet search can yield numerou...

Page 27: ...AIN signal will range from 3 08 the SIM205 reset voltage to 5 0V When powered by 5V_USBF or 5V_EXT it will be at or near 5V and when powered by the LiPo battery supply BAT_ 4V2 the 5V_MAIN signal will reflect the current battery voltage between 3 08 and 4 2V typically When operated with the optional Lithium Ion Polymer LiPo battery the SIM225 may be able to operate for several hours untethered use...

Page 28: ...elow the higher of the two input voltages This configuration allows for example a SIM225 powered in a device via 5V_EXT to simultaneously have a PC USB port or USB hub connected to the SIM MAIN 3 3V REGULATION Major power consumers such as the USB Host LCD panel backlight power and audio are all derived from 5V_MAIN to maximize power conversion efficiency The rest of the circuitry on the SIM225 in...

Page 29: ...e hazard If you use a Lithium Polymer battery with SIM225 you must observe sufficient design precautions for Lithium batteries including carefully following the recommendations in the TI BQ24030 documentation LIPO CONNECTION The SIM225 supports single cell 3 7V LiPo batteries with two or three wires power ground and optional temperature sensor These three signals are available on both the LiPo Bat...

Page 30: ...ll charge in this time then charging will suspend and the BATSTAT LED will show the error condition STAT1 and STAT2 both low The most challenging power environment occurs when the SIM225 is solely powered by the USB device port with a 500mA 2500mW limit With the backlight fully on and the MCU running nearly all the power budget is consumed leaving insufficient power for the audio and USB host subs...

Page 31: ...ing the system under load Based on the status lines RX_STAT1 RX_STAT2 ACPG USBPG software can determine the battery state and make appropriate judgements as to the batteries current charge level The voltage read by the A to D will be scaled by the resistor divider 1 5K 1 1K 1 5K 57 69 so a battery voltage near the peak of 4 2V will translate to an A to D value of 4 2 57 69 3 3V the A to D 100 valu...

Page 32: ...ble software can drop the brightness to less than 100 when operating from these sources and even further reduce brightness as the software detects the battery voltage dropping Another technique is to turn off the backlight completely when the touch panel has not been touched for some duration for example 30 seconds and then waking up the backlight when touched again or a condition on the GUI needs...

Page 33: ...ell battery is to provide backup power to the RX MCU s Real Time Clock peripheral to keep the clock calendar running in the event that all other power sources are removed Consult the RX63N RX631 datasheet for exact specifications but this battery can potentially keep the clock keeping time for several years without replacement The RTCC circuit in the RX MCU automatically switches to use the coin c...

Page 34: ... MCU operating at 96MHz the SDRAM can operate at 48MHz The RX MCU s built in SDRAM controller can be configured to enable this memory in random access or burst modes The SDRAM when used with the MCU s Direct Drive DMA and Timer peripherals can deliver pixel data directly to the SIM225 s LCD screen During the delivery of pixel data to the LCD software in the MCU must be cautious not to access the S...

Page 35: ...tion at run time can enable software to dynamically adapt to the specific variant as well as accommodate any software visible differences between versions of the specific module Do not write to the SST25VF064C s OTP region This region is reserved for manufacturing and configuration information by Serious Writing to this area may void your warranty with Serious and render the module unusable SHIPWa...

Page 36: ...mini B connector The USB Device signals are also available on other connectors including the PCB Edge Connector and the Baseboard Connector when present Some SIM225 variants also have a USB 2 0 Full Speed embedded host A connector and associated capability for typically support of USB thumb drives keyboards mice etc The following chart lists the current SIM225 variants and the USB options SIM225 V...

Page 37: ...t All SIM225 family members aka variants have the USB device port circuitry connected to this port USB1 From a data connectivity perspective this port is commonly plugged into a PC and depending on user supplied software can act like any number of PC peripherals such as a serial port SHIPEngine contains built in USB device stacks and protocols that allow the SIM225 to communicate directly with SHI...

Page 38: ...ore details Some features of the SIM225 should not be activated from software when powered solely from the 500mA maximum available on the USB Device port High power features such as the Speaker Amplifier and USB Embedded Host Port often require too much current for this supply alone These features may only be accessible when more power is available for example when used with an external LiPo batte...

Page 39: ... peripheral able to drive this signal so software will typically be written to drive the sounder at a given frequency with 50 duty cycle for full volume output The duty cycle can be reduced to lower the volume The sounder s resonant frequency is centered at 2400 Hz Waveforms at this frequency will generate the loudest perceived sound DAC OUTPUTS The RX MCU has dual 10 bit DACs that can be used to ...

Page 40: ...tions and programming information PCB TEMPERATURE SENSOR Some SIM225 variants also contain an On Semiconductor NCT75 for measuring the system board temperature This sensor is excellent for keeping track of general system temperature but is not an ambient air temperature sensor accurate air temperature sensors require separation from the circuit board in order to isolate the sensor from heating sou...

Page 41: ...ck signals or clocks on the SIM225 All clocks including for instance the 96MHz CPU core clock the 12MHz USB clock and a 9 600baud serial port clock can be traced back to an originating oscillator source somewhere The two main oscillators clocks in the SIM225 are 1 The relatively accurate 32 768 KHz crystal oscillator attached to the RTCC input on the MCU For modules with battery backed RTCC capabi...

Page 42: ... documentation for a complete description MCU ON CHIP BATTERY BACKED REAL TIME CLOCK CALENDAR Time keeping i e year month day hour etc can be performed using the RX MCU s internal Real Time Clock Calendar peripheral if the family member has the 32 768 KHz crystal populated on the module The RTCC peripheral must be configured via software and registers to be enabled and use that clock input correct...

Page 43: ...ut that can wake the MCU from various sleep modes A front panel captive button or plunger can be positioned to actuate this switch There is no requirement for an end system to use this switch the enclosure may cover it completely and render it inaccessible if desired Some SIM225 variants have two bi color red green LEDs placed on front of the display side of the module A bi color LED is actually t...

Page 44: ...er Regulator 3 BAT_TS If a Lithium Polymer battery is connected BAT_TS must be connected to the thermistor terminal of the battery See Battery Selection Connection and Charging 4 5V_USBF USB Device Function Power 5 5V_EXT External SIM power input See Power Sources 6 RX_SDA0 GPIO I2C2 Data or UART2 TxD 7 P13 SSDA2 TXD2 RX_SCL0 GPIO I2C2 Clock or UART2 RxD 8 P12 SSCL2 RXD2 RX_RSPCKB RX MCU SPI RSPI1...

Page 45: ...ions only use the first 20 pins with the Samtec MEC6 110 02 L D RA1 TR mating connector These same 20 pins are available on other SIMs including the SIM110 Some applications will use all the pins with the 40 pin Samtec MEC6 120 02 L D RA1 TR mating connector Not all SIMs have these extra pins The PCB Edge Connector is not polarized or keyed Connecting it backwards may damage your SIM and or connec...

Page 46: ...ogram SIM225 variants that do not have the JTAG Connector and or USB Mini B Device Connector Some SIM225 variants have the extended version of the PCB Edge Connector exposing additional signals Signal Description Pin RX631 63N MCU Name RX621 62N MCU Name PWRDWN This low current input signal powers off the SIM225 s main regulator s when pulled low Weakly pulled high on module 29 BAT_TS The LiPo bat...

Page 47: ... connecting both simultaneously may damage your SIM or even your PC Hub powering the SIM SPA100 The PCB Edge Connector is not designed for live power insertion removal Ensure the power to the SIM is off when connecting or disconnecting from this port to avoid damage your SIM or connected equipment Consult the SPA100 documentation for more details and recommended usage guidelines TAG CONNECT PROGRA...

Page 48: ... crimp pins supporting wire gauges from 26 to 30 AWG Check the SIM DC Power Specifications of the SIM to ensure the gauge of wire selected is sufficient for the power required Signal Name Description Pin 5V_EXT Incoming 5VDC power pin see Power Supplies 1 3V3 Regulated 3 3VDC output from module see Power Supplies 2 RESET System RESET input and or output pulled high on the module 3 P03 DA0 P47 AN7 ...

Page 49: ...f switch and or reset switch As described above the PWRDWN signal can be connected or driven low to turn off the SIM USB MINI B DEVICE CONNECTOR All SIM225 variants have the USB device or function in USB nomenclature circuitry populated and connected to the RX MCU s USB0 port However only some SIM225 variants family members have the USB Mini B connector present The standard USB device signals are ...

Page 50: ...0 100 Ethernet jack The RX63N RX631 MCUs have extensive I O multiplexers allowing one of many different peripheral functions to map to a given I O pin consult the RX63N RX631 hardware manuals for the complete list of options Several signals on this connector are directly connected to signals on other connectors including 3V3 RESET 5V_EXT Ensure that common signal connections are appropriate or you...

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