LM3S6422 Datasheet, PDF (33/609 Pages) Texas Instruments – Stellaris® LM3S6422 Microcontroller

Stellaris^® LM3S6422 Microcontroller
– Reset generation logic with an enable/disable
– User-enabled stalling when the controller asserts the CPU Halt flag during debug
■ ADC
– Two analog input channels
– Single-ended and differential-input configurations
– On-chip internal temperature sensor
– Sample rate of 250 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
– Flexible trigger control
• Controller (software)
• Timers
• Analog Comparators
• GPIO
– Hardware averaging of up to 64 samples for improved accuracy
– Converter uses an internal 3-V reference
– Power and ground for the analog circuitry is separate from the digital power and ground
■ UART
– Fully programmable 16C550-type UART with IrDA support
– Separate 16x8 transmit (TX) and receive (RX) FIFOs to reduce CPU interrupt service loading
– Programmable baud-rate generator allowing speeds up to 1.5625 Mbps
– 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
– Line-break generation and detection
– Fully programmable serial interface characteristics
• 5, 6, 7, or 8 data bits
• Even, odd, stick, or no-parity bit generation/detection
June 18, 2012
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