Datasheet

LPC2101_02_03_4 © NXP B.V. 2009. All rights reserved.
Product data sheet Rev. 04 — 2 June 2009 11 of 37
NXP Semiconductors
LPC2101/02/03
Single-chip 16-bit/32-bit microcontrollers
6.3 On-chip static RAM
On-chip static RAM may be used for code and/or data storage. The SRAM may be
accessed as 8-bits, 16-bits, and 32-bits. The LPC2101/02/03 provide 2 kB, 4 kB or 8 kB of
static RAM.
6.4 Memory map
The LPC2101/02/03 memory map incorporates several distinct regions, as shown in
Figure 4.
In addition, the CPU interrupt vectors may be re-mapped to allow them to reside in either
flash memory (the default) or on-chip static RAM. This is described in Section 6.17
“System control”.
Fig 4. LPC2101/02/03 memory map
AHB PERIPHERALS
APB PERIPHERALS
RESERVED ADDRESS SPACE
RESERVED ADDRESS SPACE
BOOT BLOCK
RESERVED ADDRESS SPACE
8 kB ON-CHIP STATIC RAM (LPC2103)
2 kB ON-CHIP STATIC RAM (LPC2101)
32 kB ON-CHIP NON-VOLATILE MEMORY
(LPC2103)
0xFFFF FFFF
0xF000 0000
0xE000 0000
0xC000 0000
0x8000 0000
0x7FFF FFFF
0x4000 1000
0x4000 07FF
0x4000 2000
0x4000 1FFF
4 kB ON-CHIP STATIC RAM (LPC2102)
0x4000 0800
0x4000 0FFF
0x7FFF E000
0x7FFF DFFF
0x4000 0000
0x0000 8000
0x0000 7FFF
0x0000 4000
4.0 GB
3.75 GB
3.5 GB
3.0 GB
2.0 GB
1.0 GB
16 kB ON-CHIP NON-VOLATILE MEMORY
(LPC2102)
0x0000 3FFF
0x0000 2000
8 kB ON-CHIP NON-VOLATILE MEMORY
(LPC2101)
0x0000 1FFF
0x0000 0000
0.0 GB
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