Описание
The Stellaris® LM3S1512 microcontroller is based on the ARM® Cortex-M3 controller core operating at up to 25 MHz, with 96 kB flash and 64 kB SRAM.The LM3S1512 also features real-time industrial connectivity, with 2 SSI / SPI controllers, 2 I2C interfaces, and 3 UARTs.The microcontroller also features intelligent analog capability, including 3 analog comparators and 2 channels of highly accurate 10-bit analog-to-digital conversion – with the ability to sample at speeds of 250K samples per second.Finally, the LM3S1512 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 58 GPIOs.
32-bit ARM® Cortex™-M3 25-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
96 KB single-cycle flash and 64 KB single-cycle SRAM
Lower-power battery-backed Hibernation module with Real-Time Clock
15-58 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 two analog input channels and a sample rate of 250 thousand samples/second
Three 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
Three integrated analog comparators configurable for output to initiate an ADC sample sequence, drive an output pin or generate an interrupt
Quadrature Encoder Interface (QEI) featuring position integrator to track encoder position and velocity capture using built-in timer
Industrial and extended temperature RoHS-compliant 100-pin LQFP package and industrial-range RoHS-compliant 108-ball BGA package
