© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
User manual Rev. 01 — 12 January 2006 9
Philips Semiconductors
UM10161
Volume 1 Chapter 2: Memory map
Figure 3, Figure 4, and Ta bl e 2 show different views of the peripheral address space.
Both the AHB and APB peripheral areas are 2 megabyte spaces which are divided up into
128 peripherals. Each peripheral space is 16 kilobytes in size. This allows simplifying the
address decoding for each peripheral. All peripheral register addresses are word aligned
AHB section is 128 x 16 kB blocks (totaling 2 MB).
APB section is 128 x 16 kB blocks (totaling 2MB).
Fig 3. Peripheral memory map
RESERVED
RESERVED
0xF000 0000
0xEFFF FFFF
APB PERIPHERALS
0xE020 0000
0xE01F FFFF
0xE000 0000
AHB PERIPHERALS
0xFFFF FFFF
0xFFE0 0000
0xFFDF FFFF
3.75 GB
3.5 GB
3.5 GB + 2 MB
4.0 GB - 2 MB
4.0 GB
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