LM3S8971 Datasheet, PDF (7/577 Pages) List of Unclassifed Manufacturers – Microcontroller

LM3S8971 Microcontroller
17.2.1 Internal Reference Programming .............................................................................................. 457
17.3 Initialization and Configuration ................................................................................................. 458
17.4 Register Map .......................................................................................................................... 459
17.5 Register Descriptions .............................................................................................................. 459
18 Pulse Width Modulator (PWM) ........................................................................................ 467
18.1 Block Diagram ........................................................................................................................ 467
18.2 Functional Description ............................................................................................................. 467
18.2.1 PWM Timer ............................................................................................................................. 467
18.2.2 PWM Comparators .................................................................................................................. 468
18.2.3 PWM Signal Generator ............................................................................................................ 469
18.2.4 Dead-Band Generator ............................................................................................................. 470
18.2.5 Interrupt/ADC-Trigger Selector ................................................................................................. 470
18.2.6 Synchronization Methods ......................................................................................................... 470
18.2.7 Fault Conditions ...................................................................................................................... 471
18.2.8 Output Control Block ............................................................................................................... 471
18.3 Initialization and Configuration ................................................................................................. 471
18.4 Register Map .......................................................................................................................... 472
18.5 Register Descriptions .............................................................................................................. 474
19 Quadrature Encoder Interface (QEI) ............................................................................... 503
19.1 Block Diagram ........................................................................................................................ 503
19.2 Functional Description ............................................................................................................. 504
19.3 Initialization and Configuration ................................................................................................. 506
19.4 Register Map .......................................................................................................................... 506
19.5 Register Descriptions .............................................................................................................. 507
20 Pin Diagram ...................................................................................................................... 520
21 Signal Tables .................................................................................................................... 521
22 Operating Characteristics ............................................................................................... 534
23 Electrical Characteristics ................................................................................................ 535
23.1 DC Characteristics .................................................................................................................. 535
23.1.1 Maximum Ratings ................................................................................................................... 535
23.1.2 Recommended DC Operating Conditions .................................................................................. 535
23.1.3 On-Chip Low Drop-Out (LDO) Regulator Characteristics ............................................................ 536
23.1.4 Power Specifications ............................................................................................................... 536
23.1.5 Flash Memory Characteristics .................................................................................................. 538
23.2 AC Characteristics ................................................................................................................... 538
23.2.1 Load Conditions ...................................................................................................................... 538
23.2.2 Clocks .................................................................................................................................... 538
23.2.3 Analog-to-Digital Converter ...................................................................................................... 539
23.2.4 Analog Comparator ................................................................................................................. 540
23.2.5 Ethernet Controller .................................................................................................................. 540
23.2.6 Hibernation Module ................................................................................................................. 543
23.2.7 Synchronous Serial Interface (SSI) ........................................................................................... 544
23.2.8 JTAG and Boundary Scan ........................................................................................................ 545
23.2.9 General-Purpose I/O ............................................................................................................... 546
23.2.10 Reset ..................................................................................................................................... 547
October 01, 2007
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Preliminary