Описание
The Stellaris® LM3S6918 microcontroller is based on the ARM® Cortex-M3 controller core operating at up to 50 MHz, with 256 kB flash and 64 kB SRAM.The LM3S6918 also features real-time industrial connectivity, with a 10/100 Ethernet MAC/PHY, 2 SSI / SPI controllers, 2 I2C interfaces, and 2 UARTs.The microcontroller also features intelligent analog capability, including 2 analog comparators and 8 channels of highly accurate 10-bit analog-to-digital conversion – with the ability to sample at speeds of 500K samples per second.Finally, the LM3S6918 microcontroller provides a 24-bit systick timer, 4 32-bit or 8 16-bit general-purpose timers, a watchdog timer, a battery-backed hibernation module with RTC and 256 bytes of non-volatile state-saving memory, a low drop-out voltage regulator so that only one supply voltage is required, brown-out reset, power-on reset controller, and up to 38 GPIOs.
32-bit ARM® Cortex™-M3 50-MHz processor core with System Timer (SysTick), integrated Nested Vectored Interrupt Controller (NVIC), Memory Protection Unit (MPU), and Thumb-2 instruction set
Full-featured debug solution with debug access via JTAG and Serial Wire interfaces, and IEEE 1149.1-1990 compliant Test Access Port (TAP) controller
256 KB single-cycle flash and 64 KB single-cycle SRAM
Lower-power battery-backed Hibernation module with Real-Time Clock
5-38 GPIOs (depending on configuration) with programmable control for GPIO interrupts and pad configuration
ARM FiRM-compliant Watchdog Timer ; plus four General-Purpose Timer Modules (GPTM), each of which provides two 16-bit timers/counters and can be configured to operate independently
10-bit Analog-to-Digital Converter (ADC) with eight analog input channels and a sample rate of 500 thousand samples/second
Two fully programmable 16C550-type UARTs with IrDA support
Two Synchronous Serial Interface (SSI) modules, supporting operation for Freescale SPI, MICROWIRE, or Texas Instruments synchronous serial interfaces
Two Inter-Integrated Circuit (I2C) Interface modules, providing Standard (100 Kbps) and Fast (400 Kbps) transmission and support for sending and receiving data as either a master or a slave
Highly configurable 10/100 Ethernet Controller that conforms to the IEEE 802.3-2002 specification with full- and half-duplex modes for both 100 Mbps and 10 Mbps operation, and automatic MDI/MDI-X cross-over correction
Two integrated analog comparators configurable for output to initiate an ADC sample sequence, drive an output pin or generate an interrupt
Industrial and extended temperature RoHS-compliant 100-pin LQFP package and industrial-range RoHS-compliant 108-ball BGA package
