LM3S608 Datasheet, PDF (108/416 Pages) List of Unclassifed Manufacturers – Microcontroller

Internal Memory
7 Internal Memory
The LM3S608 microcontroller comes with 8 KB of bit-banded SRAM and 32 KB of flash memory.
The flash controller provides a user-friendly interface, making flash programming a simple task.
Flash protection can be applied to the flash memory on a 2-KB block basis.
7.1 Block Diagram
Figure 7-1. Flash Block Diagram
Flash Timing
USECRL
Cortex-M3
ICode
DCode
System Bus
Bridge
APB
Flash Control
FMA
FMD
FMC
FCRIS
FCIM
FCMISC
Flash Array
SRAM Array
Flash Protection
FMPRE
FMPPE
7.2
7.2.1
Functional Description
This section describes the functionality of both the flash and SRAM memories.
SRAM Memory
The internal SRAM of the Stellaris^® devices is located at address 0x2000.0000 of the device memory
map. To reduce the number of time consuming read-modify-write (RMW) operations, ARM has
introduced bit-banding technology in the Cortex-M3 processor. With a bit-band-enabled processor,
certain regions in the memory map (SRAM and peripheral space) can use address aliases to access
individual bits in a single, atomic operation.
The bit-band alias is calculated by using the formula:
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October 01, 2007
Preliminary