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UM10316_0
© NXP B.V. 2008. All rights reserved.
User manual
Rev. 00.06 — 17 December 2008
19 of 571
NXP Semiconductors
UM10316
Chapter 2: LPC29xx memory mapping
After reset, the region 1 embedded flash area is always available at the shadow area.
After booting, any other region of the AHB system memory map (e.g. internal SRAM) can
be re-mapped to region 0 by means of the shadow memory mapping register. For more
details about the shadow area see
.
3.2 Region 1: embedded flash area
gives a graphical overview of the embedded flash memory map.
Region 1 is reserved for the embedded flash. A data area of 2 Mbyte (to be prepared for a
larger flash-memory instance) and a configuration area of 4 kB are reserved for each
embedded flash instance. Although the LPC29xx contains only one embedded flash
instance, the memory aperture per instance is defined at 4 Mbyte.
3.3 Region 2: external static memory area
Region 2 is reserved for the external static memory. The LPC29xx provides I/O pins for
eight bank-select signals and 24 address lines. This implies that eight memory banks of
16 Mbytes each can be addressed externally.
3.4 Region 3: external static memory controller area
The external Static-Memory Controller configuration area is located at region 3
3.5 Region 4: internal SRAM area
gives a graphical overview of the internal SRAM memory map.
Fig 8.
Region 1 embedded flash memory
+ 0x00000000
+ 0x1FFFFFFF
+ 0x00200000
FLASH IF1
Configuration Area (4 Kbyte)
+ 0x00200FFF
Embedded FLASH
memory area
512 Kbyte -
768 Kbyte
+ 0x0007FFFF - 0x000BFFF