9.2.7
Transfer Size and Increment .................................................................................................... 202
9.2.8
Peripheral Interface ................................................................................................................. 202
9.2.9
Software Request .................................................................................................................... 202
9.2.10 Interrupts and Errors ................................................................................................................ 203
9.3
Initialization and Configuration ................................................................................................. 203
9.3.1
Module Initialization ................................................................................................................. 203
9.3.2
Configuring a Memory-to-Memory Transfer ............................................................................... 203
9.3.3
Configuring a Peripheral for Simple Transmit ............................................................................ 205
9.3.4
Configuring a Peripheral for Ping-Pong Receive ........................................................................ 206
9.4
Register Map .......................................................................................................................... 209
9.5
μDMA Channel Control Structure ............................................................................................. 210
9.6
μDMA Register Descriptions .................................................................................................... 216
10
General-Purpose Input/Outputs (GPIOs) ....................................................................... 250
10.1
Functional Description ............................................................................................................. 250
10.1.1 Data Control ........................................................................................................................... 252
10.1.2 Interrupt Control ...................................................................................................................... 253
10.1.3 Mode Control .......................................................................................................................... 254
10.1.4 Commit Control ....................................................................................................................... 254
10.1.5 Pad Control ............................................................................................................................. 254
10.1.6 Identification ........................................................................................................................... 255
10.2
Initialization and Configuration ................................................................................................. 255
10.3
Register Map .......................................................................................................................... 256
10.4
Register Descriptions .............................................................................................................. 258
11
General-Purpose Timers ................................................................................................. 297
11.1
Block Diagram ........................................................................................................................ 297
11.2
Functional Description ............................................................................................................. 298
11.2.1 GPTM Reset Conditions .......................................................................................................... 299
11.2.2 32-Bit Timer Operating Modes .................................................................................................. 299
11.2.3 16-Bit Timer Operating Modes .................................................................................................. 300
11.3
Initialization and Configuration ................................................................................................. 304
11.3.1 32-Bit One-Shot/Periodic Timer Mode ....................................................................................... 304
11.3.2 32-Bit Real-Time Clock (RTC) Mode ......................................................................................... 305
11.3.3 16-Bit One-Shot/Periodic Timer Mode ....................................................................................... 305
11.3.4 16-Bit Input Edge Count Mode ................................................................................................. 306
11.3.5 16-Bit Input Edge Timing Mode ................................................................................................ 306
11.3.6 16-Bit PWM Mode ................................................................................................................... 307
11.4
Register Map .......................................................................................................................... 307
11.5
Register Descriptions .............................................................................................................. 308
12
Watchdog Timer ............................................................................................................... 331
12.1
Block Diagram ........................................................................................................................ 331
12.2
Functional Description ............................................................................................................. 331
12.3
Initialization and Configuration ................................................................................................. 332
12.4
Register Map .......................................................................................................................... 332
12.5
Register Descriptions .............................................................................................................. 333
13
Analog-to-Digital Converter (ADC) ................................................................................. 354
13.1
Block Diagram ........................................................................................................................ 355
13.2
Functional Description ............................................................................................................. 355
5
April 08, 2008
Preliminary
LM3S3748 Microcontroller