Texas Instruments TM4C1294NCPDT User Manual

2.3.5 Exceptions and Interrupts
The Cortex-M4F processor supports interrupts and system exceptions. The processor and the
Nested Vectored Interrupt Controller (NVIC) prioritize and handle all exceptions. An exception
changes the normal flow of software control. The processor uses Handler mode to handle all
exceptions except for reset. See “Exception Entry and Return” on page 120 for more information.
The NVIC registers control interrupt handling. See “Nested Vectored Interrupt Controller
(NVIC)” on page 136 for more information.
2.3.6 Data Types
The Cortex-M4F supports 32-bit words, 16-bit halfwords, and 8-bit bytes. The processor also supports
64-bit data transfer instructions. All instruction and data memory accesses are little endian. See
“Memory Regions, Types and Attributes” on page 106 for more information.
2.4 Memory Model
This section describes the processor memory map, the behavior of memory accesses, and the
bit-banding features. The processor has a fixed memory map that provides up to 4 GB of addressable
memory.
The memory map for the TM4C1294NCPDT controller is provided in Table 2-4 on page 103. In this
manual, register addresses are given as a hexadecimal increment, relative to the module's base
address as shown in the memory map.
The regions for SRAM and peripherals include bit-band regions. Bit-banding provides atomic
operations to bit data (see “Bit-Banding” on page 109).
The processor reserves regions of the Private peripheral bus (PPB) address range for core peripheral
registers (see “Cortex-M4 Peripherals” on page 134).
Note: Within the memory map, attempts to read or write addresses in reserved spaces result in
a bus fault. In addition, attempts to write addresses in the flash range also result in a bus
fault.
Table 2-4. Memory Map
For details,
see page ...
DescriptionEndStart
Memory
621On-chip Flash0x000F.FFFF0x0000.0000
-Reserved0x01FF.FFFF0x0010.0000
602On-chip ROM (16 MB)0x02FF.FFFF0x0200.0000
-Reserved0x1FFF.FFFF0x0300.0000
602Bit-banded on-chip SRAM0x2006.FFFF0x2000.0000
-Reserved0x21FF.FFFF0x2007.0000
602Bit-band alias of bit-banded on-chip SRAM starting at
0x2000.0000
0x2234.FFFF0x2200.0000
-
Reserved0x3FFF.FFFF0x2235.0000
Peripherals
1030Watchdog timer 00x4000.0FFF0x4000.0000
1030Watchdog timer 10x4000.1FFF0x4000.1000
-Reserved0x4000.3FFF0x4000.2000
103June 18, 2014
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TM4C1294NCPDT Microcontroller

Texas Instruments TM4C1294NCPDT Specifications

General

Brand	Texas Instruments
Model	TM4C1294NCPDT
Category	Microcontrollers
Language	English