LM3S1637 Datasheet, PDF (8/696 Pages) Texas Instruments – ARM and Thumb are registered trademarks and Cortex is a trademark

Table of Contents
17 Quadrature Encoder Interface (QEI) ................................................................... 597
17.1 Block Diagram ............................................................................................................ 597
17.2 Signal Description ....................................................................................................... 598
17.3 Functional Description ................................................................................................. 599
17.4 Initialization and Configuration ..................................................................................... 601
17.5 Register Map .............................................................................................................. 601
17.6 Register Descriptions .................................................................................................. 602
18 Pin Diagram .......................................................................................................... 615
19 Signal Tables ........................................................................................................ 617
19.1 100-Pin LQFP Package Pin Tables ............................................................................... 617
19.1.1 Signals by Pin Number ................................................................................................ 617
19.1.2 Signals by Signal Name ............................................................................................... 621
19.1.3 Signals by Function, Except for GPIO ........................................................................... 625
19.1.4 GPIO Pins and Alternate Functions .............................................................................. 628
19.2 108-Ball BGA Package Pin Tables ................................................................................ 629
19.2.1 Signals by Pin Number ................................................................................................ 629
19.2.2 Signals by Signal Name ............................................................................................... 634
19.2.3 Signals by Function, Except for GPIO ........................................................................... 638
19.2.4 GPIO Pins and Alternate Functions .............................................................................. 641
19.3 Connections for Unused Signals ................................................................................... 642
20 Operating Characteristics ................................................................................... 644
21 Electrical Characteristics .................................................................................... 645
21.1 DC Characteristics ...................................................................................................... 645
21.1.1 Maximum Ratings ....................................................................................................... 645
21.1.2 Recommended DC Operating Conditions ...................................................................... 645
21.1.3 On-Chip Low Drop-Out (LDO) Regulator Characteristics ................................................ 646
21.1.4 GPIO Module Characteristics ....................................................................................... 646
21.1.5 Power Specifications ................................................................................................... 646
21.1.6 Flash Memory Characteristics ...................................................................................... 648
21.1.7 Hibernation ................................................................................................................. 648
21.2 AC Characteristics ....................................................................................................... 648
21.2.1 Load Conditions .......................................................................................................... 648
21.2.2 Clocks ........................................................................................................................ 649
21.2.3 JTAG and Boundary Scan ............................................................................................ 650
21.2.4 Reset ......................................................................................................................... 652
21.2.5 Sleep Modes ............................................................................................................... 653
21.2.6 Hibernation Module ..................................................................................................... 653
21.2.7 General-Purpose I/O (GPIO) ........................................................................................ 654
21.2.8 Analog-to-Digital Converter .......................................................................................... 655
21.2.9 Synchronous Serial Interface (SSI) ............................................................................... 656
21.2.10 Inter-Integrated Circuit (I²C) Interface ........................................................................... 657
21.2.11 Analog Comparator ..................................................................................................... 658
A
A.1
A.2
A.2.1
A.2.2
Serial Flash Loader .............................................................................................. 659
Serial Flash Loader ..................................................................................................... 659
Interfaces ................................................................................................................... 659
UART ......................................................................................................................... 659
SSI ............................................................................................................................. 659
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June 18, 2012
Texas Instruments-Production Data