LM3S5D91 Datasheet, PDF (6/1340 Pages) Texas Instruments – Stellaris® LM3S5D91 Microcontroller

Table of Contents
9.3
9.3.1
9.3.2
9.4
9.4.1
9.4.2
9.4.3
9.5
9.6
Functional Description ................................................................................................. 461
Non-Blocking Reads .................................................................................................... 462
DMA Operation ........................................................................................................... 463
Initialization and Configuration ..................................................................................... 463
SDRAM Mode ............................................................................................................. 464
Host Bus Mode ........................................................................................................... 468
General-Purpose Mode ............................................................................................... 479
Register Map .............................................................................................................. 487
Register Descriptions .................................................................................................. 488
10 General-Purpose Timers ...................................................................................... 532
10.1 Block Diagram ............................................................................................................ 532
10.2 Signal Description ....................................................................................................... 533
10.3 Functional Description ................................................................................................. 536
10.3.1 GPTM Reset Conditions .............................................................................................. 537
10.3.2 Timer Modes ............................................................................................................... 537
10.3.3 DMA Operation ........................................................................................................... 543
10.3.4 Accessing Concatenated Register Values ..................................................................... 544
10.4 Initialization and Configuration ..................................................................................... 544
10.4.1 One-Shot/Periodic Timer Mode .................................................................................... 544
10.4.2 Real-Time Clock (RTC) Mode ...................................................................................... 545
10.4.3 Input Edge-Count Mode ............................................................................................... 545
10.4.4 Input Edge Timing Mode .............................................................................................. 546
10.4.5 PWM Mode ................................................................................................................. 547
10.5 Register Map .............................................................................................................. 547
10.6 Register Descriptions .................................................................................................. 548
11
11.1
11.2
11.2.1
11.3
11.4
11.5
Watchdog Timers ................................................................................................. 579
Block Diagram ............................................................................................................ 580
Functional Description ................................................................................................. 580
Register Access Timing ............................................................................................... 581
Initialization and Configuration ..................................................................................... 581
Register Map .............................................................................................................. 581
Register Descriptions .................................................................................................. 582
12 Analog-to-Digital Converter (ADC) ..................................................................... 604
12.1 Block Diagram ............................................................................................................ 605
12.2 Signal Description ....................................................................................................... 606
12.3 Functional Description ................................................................................................. 608
12.3.1 Sample Sequencers .................................................................................................... 608
12.3.2 Module Control ............................................................................................................ 609
12.3.3 Hardware Sample Averaging Circuit ............................................................................. 611
12.3.4 Analog-to-Digital Converter .......................................................................................... 612
12.3.5 Differential Sampling ................................................................................................... 616
12.3.6 Internal Temperature Sensor ........................................................................................ 618
12.3.7 Digital Comparator Unit ............................................................................................... 619
12.4 Initialization and Configuration ..................................................................................... 623
12.4.1 Module Initialization ..................................................................................................... 623
12.4.2 Sample Sequencer Configuration ................................................................................. 624
12.5 Register Map .............................................................................................................. 624
12.6 Register Descriptions .................................................................................................. 626
6
January 22, 2012
Texas Instruments-Production Data