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Stellaris » LM3S1918

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Not Recommended For New Designs

The Stellaris® LM3S1918 microcontroller is based on the ARM® Cortex™-M3 controller core operating at 50 MHz, with 256 kB single-cycle flash, 64 kB single-cycle SRAM, a 24-bit Systick Timer, 4x 32-bit or 8x 16-bit general-purpose timers, a watchdog timer, two SSI / SPI controllers, two I2C interfaces, 2 UARTs, 2 analog comparators, a 10-bit analog-to-digital converter (ADC) with 8 input channels (+/- 1LSb of accuracy), a battery-backed hibernation module with RTC and 256 bytes of non-volatile state-saving memory, a low drop-out voltage regulator, brown-out reset, power-on reset controller, and up to 52 GPIOs.

Product Features

32-Bit RISC Performance

  • 32-bit ARM® Cortex™-M3 v7M architecture optimized for small-footprint embedded applications
  • 50-MHz operation with 32-bit ARM® Cortex™-M3 architecture
  • System timer (SysTick) provides a simple, 24-bit clear-on-write, decrementing, wrap-on-zero counter with a flexible control mechanism
  • Thumb®-compatible Thumb-2-only instruction set, with hardware-division and single-cycle-multiplication
  • Integrated Nested Vectored Interrupt Controller (NVIC) provides deterministic interrupt handling
  • 32 interrupts with eight priority levels
  • Memory protection unit (MPU) provides a privileged mode for protected operating system functionality
  • Unaligned data access enables data to be efficiently packed into memory
  • Atomic bit manipulation (bit-banding) delivers maximum memory utilization and streamlined peripheral control
On-Chip Memory
  • 256 KB single-cycle flash
    • User-managed flash block protection on a 2-KB block basis
    • User-managed flash data programming
    • User-defined and managed flash-protection block
  • 64 KB single-cycle SRAM
Flexible Timer Capability
  • Four general-purpose timers, each configurable as one 32-bit or two 16-bit timers
  • Real-Time Clock (RTC) capability
  • 24-bit system (SysTick) timer
  • 32-bit watchdog timer
General-Purpose Timers
  • Four General-Purpose Timer Modules (GPTM), each of which provides two 16-bit timer/counters. Each GPTM can be configured to operate independently as timers or event counters (eight total): as a single 32-bit timer (four total), as one 32-bit Real-Time Clock (RTC) to event capture, for Pulse Width Modulation (PWM), or to trigger analog-to-digital conversions
  • 32-bit Timer modes
    • Programmable one-shot timer
    • Programmable periodic timer
    • Real-Time Clock when using an external 32.768-KHz clock as the input
    • User-enabled stalling in periodic and one-shot mode when the controller asserts the CPU Halt flag during debug
    • ADC event trigger
  • 16-bit Timer modes
    • General-purpose timer function with an 8-bit prescaler
    • Programmable one-shot timer
    • Programmable periodic timer
    • User-enabled stalling when the controller asserts CPU Halt flag during debug
    • ADC event trigger
  • 16-bit Input Capture modes
    • Input edge count capture
    • Input edge time capture
  • 16-bit PWM mode
    • Simple PWM mode with software-programmable output inversion of the PWM signal
Watchdog Timer
  • 32-bit down counter with a programmable load register
  • Separate watchdog clock with an enable
  • Programmable interrupt generation logic with interrupt masking
  • Lock register protection from runaway software
  • Reset generation logic with an enable/disable
  • User-enabled stalling when the controller asserts the CPU Halt flag during debug
Serial Interfaces
  • Two synchronous serial interfaces (SSI) with master and slave modes for SPI, MICROWIRE, or TI synchronous serial
  • Two I2C interfaces (master and slave)
  • Two fully programmable 16C550-type UARTs with IrDA support
Synchronous Serial Interface (SSI)
  • Two SSI modules, each with the following features:
  • Master or slave operation
  • Programmable clock bit rate and prescale
  • Separate transmit and receive FIFOs, 16 bits wide, 8 locations deep
  • Programmable interface operation for Freescale SPI, MICROWIRE, or Texas Instruments synchronous serial interfaces
  • Programmable data frame size from 4 to 16 bits
  • Internal loopback test mode for diagnostic/debug testing
UART
  • Two fully programmable 16C550-type UARTs with IrDA support
  • Separate 16x8 transmit (TX) and 16x12 receive (RX) FIFOs to reduce CPU interrupt service loading
  • Programmable baud-rate generator with fractional divider
  • Programmable FIFO length, including 1-byte deep operation providing conventional double-buffered interface
  • FIFO trigger levels of 1/8, 1/4, 1/2, 3/4, and 7/8
  • Standard asynchronous communication bits for start, stop, and parity
  • False-start-bit detection
  • Line-break generation and detection
Analog-to-Digital Converter (ADC)
  • Single- and differential-input configurations
  • Eight 10-bit channels (inputs) when used as single-ended inputs
  • Sample rate of 500 thousand samples/second
  • Flexible, configurable analog-to-digital conversion
    • Four programmable sample conversion sequences from one to eight entries long, with corresponding conversion result FIFOs
    • Each sequence triggered by software or internal event (timers, analog comparators, or GPIO)
  • On-chip temperature sensor
Analog Comparators
  • Two independent integrated analog comparators
  • Configurable for output to: drive an output pin, generate an interrupt, or initiate an ADC sample sequence
  • Compare external pin input to external pin input or to internal programmable voltage reference
Inter-Integrated Circuit (I2C) Interface
  • Two I2C modules
  • Master and slave receive and transmit operation with transmission speed up to 100 Kbps in Standard mode and 400 Kbps in Fast mode
  • Interrupt generation
  • Master with arbitration and clock synchronization, multimaster support, and 7-bit addressing mode
GPIOs
  • 17-52 GPIOs, depending on configuration
  • 5-V-tolerant input/outputs
  • Programmable interrupt generation as either edge-triggered or level-sensitive
  • Fast toggle capable of a change every two clock cycles
  • Bit masking in both read and write operations through address lines
  • Can initiate an ADC sample sequence
  • Programmable drive strength and slew-rate control
  • Programmable control for GPIO pad configuration:
    • Weak pull-up or pull-down resistors
    • 2-mA, 4-mA, and 8-mA pad drive
    • Slew rate control for the 8-mA drive
    • Open drain enables
    • Digital input enables
Power
  • On-chip Low Drop-Out (LDO) voltage regulator, with programmable output user-adjustable from 2.25 V to 2.75 V
  • Battery-backed hibernation module with real-time clock and 256-bytes of non-volatile memory
  • 3.3-V supply brown-out detection
  • Hibernation module handles the power-up/down 3.3 V sequencing and control for the core digital logic and analog circuits
  • Low-power options on controller: Sleep and Deep-sleep modes
  • Low-power options for peripherals: software controls shutdown of individual peripherals
  • User-enabled LDO unregulated voltage detection and automatic reset
  • 3.3-V supply brown-out detection and reporting via interrupt or reset
Flexible Reset Sources
  • Power-on reset (POR)
  • Reset pin assertion
  • Brown-out (BOR) detector alerts to system power drops
  • Software reset
  • Watchdog timer reset
  • Internal low drop-out (LDO) regulator output goes unregulated
Additional Features
  • Six reset sources
  • Programmable clock source control
  • Clock gating to individual peripherals for power savings
  • IEEE 1149.1-1990 compliant Test Access Port (TAP) controller
  • Debug access via JTAG and Serial Wire interfaces
  • Full JTAG boundary scan
Package
  • 100-pin RoHS-compliant LQFP package
    • Industrial-range (-40°C to +85°C)
    • Extended-range (-40°C to +105°C)
  • 108-ball RoHS-compliant BGA package
    • Industrial-range (-40°C to +85°C)

Development Kits etc.

Provider Tool name Order Number
Texas Instruments Stellaris® LM3S9B90 Kit with CodeSourcery G++ EKC-LM3S9B90
Texas Instruments AM3359 Industrial Development Kit TMDXIDK3359

IDEs (Compilers etc.)

Provider Tool name Order Number
Keil RealView® MDK for ARM MDK-ARM
Atollic Inc. TrueSTUDIO® for ARM® TS-ARM-PRO-WIN-STD-SUP
Keil RealView® MDK for ARM Basic MDK-ARM-B
IAR Systems Embedded Workbench for ARM EWARM
Keil ARM Development Studio 5 (DS-5) Application Edition Node... DS5AE-KT-30000
Keil ARM Development Studio 5 (DS-5) Application Edition... DS5AE-KT-40000
Keil ARM Development Studio 5 (DS-5) Linux Edition Node Locked... DS5LE-KT-30000
IAR Systems Embedded Workbench for ARM - Baseline EWARM-BL
Keil RealView Development Suite 4.1 Windows Node Locked License RS410-KT-30000
Keil RealView 4.1 Professional Development Suite Windows... RS41P-KT-40000
CodeSourcery Sourcery G++ for ARM EABI SGPP_ARM_EABI_s10
CodeSourcery Sourcery G++ for ARM uClinux SGPP_ARM_uC_s10
CodeSourcery Sourcery G++ for ARM GNU/Linux SGPP_ARM_LNX_s10
Keil RealView 4.1 Professional Development Suite Windows Node... RS41P-KT-30000
Texas Instruments Code Composer Studio v4.0 - Microcontroller Edition TMDSCCS-MCUF01
Texas Instruments Code Composer Studio v4.0 - Platinum TMDSCCS-ALLF01

Debuggers / Simulators

Provider Tool name Order Number
Macraigor Systems JTAG Commander JTAG Commander
Micrium uC/Probe PRB-WINX-000000-P-P1-A

Emulators

Provider Tool name Order Number
Texas Instruments XDS100v2 USB JTAG Emulator (14-pin TI connector) TMDSEMU100V2U-14T

JTAG Probes

Provider Tool name Order Number
Tag-Connect Black Sphere Debugger Black-Sphere-Dbg
Macraigor Systems usb2Demon™ 14 pin ARM JTAG header U2D-ARM-14
Macraigor Systems usb2Demon™ 20 pin ARM JTAG header U2D-ARM-20
Keil ULINK2 USB-JTAG Adapter ULINK2
IAR Systems J-Trace for ARM Cortex-M3 jlink-ARM Cortex-M3
Macraigor Systems mpDemon™ 14 pin ARM JTAG header MARM14
Macraigor Systems mpDemon™ 20 pin ARM JTAG header MARM20
Macraigor Systems usb2Wiggler™ 14 pin ARM JTAG header U2W-ARM-14
Macraigor Systems usb2Wiggler™ 20 pin ARM JTAG header U2W-ARM-20
Macraigor Systems Raven 14 pin ARM JTAG header RARM-14
Macraigor Systems Raven 20 pin ARM JTAG header RARM-20
Macraigor Systems Wiggler with 14 pin ARM JTAG header WNPJ-ARM-14
Macraigor Systems Wiggler with 20 pin ARM JTAG header WNPJ-ARM-20
Macraigor Systems usb2Sprite™ for 20 pin ARM JTAG header U2S-ARM-20
SEGGER Microcontroller J-Trace for Cortex-M3 JTAG emulator 8.13.00 J-TRACE FOR CORTEX-M3
NXP Semiconductors J-Link JTAG OM11031
SEGGER Microcontroller J-Link ULTRA 8.16.00 J-LINK ULTRA
SEGGER Microcontroller J-Link 8.08.00 J-LINK
SEGGER Microcontroller J-Link 5V Adapter 8.08.15
SEGGER Microcontroller J-Link PRO 8.12.00 J-LINK PRO
Abatron AG High-speed BDM/JTAG Interface for GNU Debugger BDI3000/A & bdiGDB Firmware
Keil ULINKpro Debug and Trace Unit ULINKpro
SEGGER Microcontroller J-Link EDU 8.08.90 J-LINK EDU
Texas Instruments XDS100v2 JTAG Emulator (20-pin compact TI connector) TMDSEMU100V2U-20T

Operating Systems

Provider Tool name Order Number
Micrium µC/OS-III KRN-K3XX-PKG000-P-P1-A
CMX Systems CMX-Tiny+ RTOS CMX-Tiny
CMX Systems CMX-RTX, preemptive, multi-tasking RTOS CMX-RTX
SEGGER Microcontroller embOS (Real Time Operating System) 1.xx.xx
Micro Digital Inc. smx® Real Time Kernel for ARM and Cortex smxARM
Micro Digital Inc. SMX.Blaze™ blaze

Stacks/Protocols/File systems

Provider Tool name Order Number
CMX Systems CMX TCP/IP is a full-featured and fast TCP/IP stack CMX-TCP/IP
CMX Systems CMX-MicroNet is a very small and fast TCP/IP stack CMX-MicroNet
CMX Systems CMX-FFS is a Flash File System FFS
Micro Digital Inc. smxWiFi™ WiFi Stack smxWiFi
Micro Digital Inc. smxUSBD™ USB Device Stack smxUSBD
Micro Digital Inc. smxUSBO™ USB OTG Stack smxUSBO
Micro Digital Inc. smxUSBH™ USB Host Stack smxUSBH
Micro Digital Inc. smxFFS™ Flash File System smxFFS
Micro Digital Inc. smxFS™ Portable File System smxFS
Interniche Technologies FAT File System FatFile
Interniche Technologies NicheStack HTTP Server NicheStack HTTP
Interniche Technologies NicheStack SNMP NicheStack SNMP
Interniche Technologies NicheStack SSL/TLS NicheStack SSL
Interniche Technologies NicheStack IPSec IPSec
Interniche Technologies NicheStack RTP/RTCP NicheStack RTP
Interniche Technologies Gateway protocols Various
Interniche Technologies NicheStack IPv4 IPv4
CMX Systems CMX-USB CMX-USB
Micro Digital Inc. smxNS™ TCP/IP Stack smxNS
SEGGER Microcontroller emWin (Graphics Software and GUI) 3.xx.xx
SEGGER Microcontroller emUSB (Embedded USB Stack) 9.xx.xx
SEGGER Microcontroller emFile (Embedded File System) 2.xx.xx
SEGGER Microcontroller embOS/IP (TCP/IP Stack) 7.xx.xx
HCC Embedded Fail-safe File Systems FFS
HCC Embedded MISRA Compliant TCP/IPv4 & IPv6 TCPIP
HCC Embedded Smart-meter File System SMFS
HCC Embedded Verifiable SSL/TLS SSLTLS
HCC Embedded eTaskSync Verifiable Scheduler ETASKSYNC
HCC Embedded Fail-safe Flash Translation Layer FTL
HCC Embedded USB Device, Host and OTG EUSB
HCC Embedded Fail-safe Bootloader BL
Interniche Technologies NicheStack Dual IPv4/IPv6 IPv4/IPv6
Interniche Technologies NicheStack IPv6 IPv6

Programmers

Provider Tool name Order Number
SEGGER Microcontroller Flasher ARM 5.07.01 FLASHER ARM
Phyton ChipProg-48 universal programmer CHIPPROG-48
Phyton ChipProg-G4 universal gang programmer CHIPPROG-G4
Phyton ChipProg-ISP Universal Programmer ChipProg-ISP
Phyton ChipProg-40 universal programmer ChipProg-40

Software Design

Provider Tool name Order Number
IAR Systems IAR visualSTATE VS

Other Software Tools

Provider Tool name Order Number
SEGGER Microcontroller J-Flash 8.08.02
SEGGER Microcontroller J-Link RDI 8.08.03
SEGGER Microcontroller J-Link Flash Breakpoint 8.08.04
SEGGER Microcontroller J-Link GDB Server 8.08.08
SEGGER Microcontroller J-Link Flash Download 8.08.05
Macraigor Systems Java Board Test Java Board Test
Micro Digital Inc. GoFast® Floating Point Library GoFast
Micro Digital Inc. Prism GUI Products smxPrism
Micro Digital Inc. PEG GUI Products smxPEG

General Accessories

Provider Tool name Order Number
SEGGER Microcontroller J-Link ARM-14 8.08.01 J-LINK ARM-14
SEGGER Microcontroller JTAG Isolator 8.07.00 JTAG ISOLATOR
SEGGER Microcontroller J-Link 19-Pin Cortex-M Adapter 8.06.02 J-LINK 19-PIN CORTEX-M ADAPTER
SEGGER Microcontroller J-Link 9-Pin Cortex-M Adapter 8.06.00 J-LINK 9-PIN CORTEX-M ADAPTER