LM3S1621 Datasheet, PDF (6/947 Pages) Texas Instruments – ARM and Thumb are registered trademarks and Cortex is a trademark

Table of Contents
8.3.3
8.3.4
8.3.5
8.4
8.5
8.6
Configuring a Peripheral for Simple Transmit ................................................................ 355
Configuring a Peripheral for Ping-Pong Receive ............................................................ 356
Configuring Channel Assignments ................................................................................ 359
Register Map .............................................................................................................. 359
μDMA Channel Control Structure ................................................................................. 360
μDMA Register Descriptions ........................................................................................ 367
9
9.1
9.2
9.2.1
9.2.2
9.2.3
9.2.4
9.2.5
9.2.6
9.3
9.4
9.5
General-Purpose Input/Outputs (GPIOs) ........................................................... 396
Signal Description ....................................................................................................... 396
Functional Description ................................................................................................. 401
Data Control ............................................................................................................... 402
Interrupt Control .......................................................................................................... 403
Mode Control .............................................................................................................. 404
Commit Control ........................................................................................................... 404
Pad Control ................................................................................................................. 405
Identification ............................................................................................................... 405
Initialization and Configuration ..................................................................................... 405
Register Map .............................................................................................................. 406
Register Descriptions .................................................................................................. 409
10 External Peripheral Interface (EPI) ..................................................................... 452
10.1 EPI Block Diagram ...................................................................................................... 453
10.2 Signal Description ....................................................................................................... 454
10.3 Functional Description ................................................................................................. 456
10.3.1 Non-Blocking Reads .................................................................................................... 457
10.3.2 DMA Operation ........................................................................................................... 458
10.4 Initialization and Configuration ..................................................................................... 458
10.4.1 SDRAM Mode ............................................................................................................. 459
10.4.2 Host Bus Mode ........................................................................................................... 463
10.4.3 General-Purpose Mode ............................................................................................... 474
10.5 Register Map .............................................................................................................. 482
10.6 Register Descriptions .................................................................................................. 483
11
11.1
11.2
11.3
11.3.1
11.3.2
11.3.3
11.3.4
11.4
11.4.1
11.4.2
11.4.3
11.4.4
11.4.5
11.5
11.6
General-Purpose Timers ...................................................................................... 525
Block Diagram ............................................................................................................ 525
Signal Description ....................................................................................................... 526
Functional Description ................................................................................................. 529
GPTM Reset Conditions .............................................................................................. 530
Timer Modes ............................................................................................................... 530
DMA Operation ........................................................................................................... 536
Accessing Concatenated Register Values ..................................................................... 537
Initialization and Configuration ..................................................................................... 537
One-Shot/Periodic Timer Mode .................................................................................... 537
Real-Time Clock (RTC) Mode ...................................................................................... 538
Input Edge-Count Mode ............................................................................................... 538
Input Edge Timing Mode .............................................................................................. 539
PWM Mode ................................................................................................................. 540
Register Map .............................................................................................................. 540
Register Descriptions .................................................................................................. 541
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January 21, 2012
Texas Instruments-Production Data