LM3S1637 Datasheet, PDF (6/696 Pages) Texas Instruments – ARM and Thumb are registered trademarks and Cortex is a trademark

Table of Contents
9.3.2
9.3.3
9.4
9.4.1
9.4.2
9.4.3
9.4.4
9.4.5
9.4.6
9.5
9.6
32-Bit Timer Operating Modes ...................................................................................... 333
16-Bit Timer Operating Modes ...................................................................................... 334
Initialization and Configuration ..................................................................................... 338
32-Bit One-Shot/Periodic Timer Mode ........................................................................... 338
32-Bit Real-Time Clock (RTC) Mode ............................................................................. 339
16-Bit One-Shot/Periodic Timer Mode ........................................................................... 339
16-Bit Input Edge Count Mode ..................................................................................... 340
16-Bit Input Edge Timing Mode .................................................................................... 340
16-Bit PWM Mode ....................................................................................................... 341
Register Map .............................................................................................................. 341
Register Descriptions .................................................................................................. 342
10 Watchdog Timer ................................................................................................... 367
10.1 Block Diagram ............................................................................................................ 368
10.2 Functional Description ................................................................................................. 368
10.3 Initialization and Configuration ..................................................................................... 369
10.4 Register Map .............................................................................................................. 369
10.5 Register Descriptions .................................................................................................. 370
11
11.1
11.2
11.3
11.3.1
11.3.2
11.3.3
11.3.4
11.3.5
11.3.6
11.3.7
11.4
11.4.1
11.4.2
11.5
11.6
Analog-to-Digital Converter (ADC) ..................................................................... 391
Block Diagram ............................................................................................................ 391
Signal Description ....................................................................................................... 392
Functional Description ................................................................................................. 393
Sample Sequencers .................................................................................................... 393
Module Control ............................................................................................................ 394
Hardware Sample Averaging Circuit ............................................................................. 394
Analog-to-Digital Converter .......................................................................................... 395
Differential Sampling ................................................................................................... 395
Test Modes ................................................................................................................. 397
Internal Temperature Sensor ........................................................................................ 397
Initialization and Configuration ..................................................................................... 398
Module Initialization ..................................................................................................... 398
Sample Sequencer Configuration ................................................................................. 398
Register Map .............................................................................................................. 399
Register Descriptions .................................................................................................. 400
12 Universal Asynchronous Receivers/Transmitters (UARTs) ............................. 428
12.1 Block Diagram ............................................................................................................ 429
12.2 Signal Description ....................................................................................................... 429
12.3 Functional Description ................................................................................................. 430
12.3.1 Transmit/Receive Logic ............................................................................................... 430
12.3.2 Baud-Rate Generation ................................................................................................. 431
12.3.3 Data Transmission ...................................................................................................... 431
12.3.4 Serial IR (SIR) ............................................................................................................. 432
12.3.5 FIFO Operation ........................................................................................................... 433
12.3.6 Interrupts .................................................................................................................... 433
12.3.7 Loopback Operation .................................................................................................... 434
12.3.8 IrDA SIR block ............................................................................................................ 435
12.4 Initialization and Configuration ..................................................................................... 435
12.5 Register Map .............................................................................................................. 436
12.6 Register Descriptions .................................................................................................. 437
6
June 18, 2012
Texas Instruments-Production Data