Texas Instruments TM4C1294NCPDT User Manual

9 Micro Direct Memory Access (μDMA) ................................................................ 678
9.1 Block Diagram ............................................................................................................ 679
9.2 Functional Description ................................................................................................. 679
9.2.1 Channel Assignments .................................................................................................. 680
9.2.2 Priority ........................................................................................................................ 681
9.2.3 Arbitration Size ............................................................................................................ 682
9.2.4 Request Types ............................................................................................................ 682
9.2.5 Channel Configuration ................................................................................................. 683
9.2.6 Transfer Modes ........................................................................................................... 685
9.2.7 Transfer Size and Increment ........................................................................................ 693
9.2.8 Peripheral Interface ..................................................................................................... 693
9.2.9 Software Request ........................................................................................................ 694
9.2.10 Interrupts and Errors .................................................................................................... 694
9.3 Initialization and Configuration ..................................................................................... 694
9.3.1 Module Initialization ..................................................................................................... 694
9.3.2 Configuring a Memory-to-Memory Transfer ................................................................... 695
9.3.3 Configuring a Peripheral for Simple Transmit ................................................................ 696
9.3.4 Configuring a Peripheral for Ping-Pong Receive ............................................................ 698
9.3.5 Configuring Channel Assignments ................................................................................ 701
9.4 Register Map .............................................................................................................. 701
9.5 μDMA Channel Control Structure ................................................................................. 702
9.6 μDMA Register Descriptions ........................................................................................ 709
10 General-Purpose Input/Outputs (GPIOs) ........................................................... 742
10.1 Signal Description ....................................................................................................... 743
10.2 Pad Capabilities .......................................................................................................... 746
10.3 Functional Description ................................................................................................. 747
10.3.1 Data Control ............................................................................................................... 748
10.3.2 Interrupt Control .......................................................................................................... 750
10.3.3 Mode Control .............................................................................................................. 751
10.3.4 Commit Control ........................................................................................................... 752
10.3.5 Pad Control ................................................................................................................. 752
10.3.6 Identification ............................................................................................................... 753
10.4 Initialization and Configuration ..................................................................................... 753
10.5 Register Map .............................................................................................................. 755
10.6 Register Descriptions .................................................................................................. 758
11 External Peripheral Interface (EPI) ..................................................................... 815
11.1 EPI Block Diagram ...................................................................................................... 816
11.2 Signal Description ....................................................................................................... 817
11.3 Functional Description ................................................................................................. 818
11.3.1 Master Access to EPI .................................................................................................. 819
11.3.2 Non-Blocking Reads .................................................................................................... 819
11.3.3 DMA Operation ........................................................................................................... 820
11.4 Initialization and Configuration ..................................................................................... 821
11.4.1 EPI Interface Options .................................................................................................. 822
11.4.2 SDRAM Mode ............................................................................................................. 822
11.4.3 Host Bus Mode ........................................................................................................... 826
11.4.4 General-Purpose Mode ............................................................................................... 847
11.5 Register Map .............................................................................................................. 854
June 18, 20146
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Table of Contents

Texas Instruments TM4C1294NCPDT Specifications

General

Brand	Texas Instruments
Model	TM4C1294NCPDT
Category	Microcontrollers
Language	English