LM3S1538 Luminary Micro, Inc, LM3S1538 Datasheet - Page 26

• Manufacturer Part Number: LM3S1538
• Description: Lm3s1538 Arm Microcontroller
• Manufacturer: Luminary Micro, Inc

Architectural Overview
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ADC
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QEI
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GPIOs
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C
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
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, or GPIO)
On-chip temperature sensor
Two I
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
Hardware position integrator tracks the encoder position
Velocity capture using built-in timer
The input frequency of the QEI inputs may be as high as 1/4 of the processor frequency (for
example, 12.5 MHz PhA/PhB/IDX for a 50-MHz system)
Interrupt generation on index pulse, velocity-timer expiration, direction change, and quadrature
error detection
9-43 GPIOs, depending on configuration
2
C modules
Preliminary
July 26, 2008