LPC2101_02_03_3

© NXP B.V. 2008. All rights reserved.

Product data sheet

Rev. 03 — 7 October 2008

11 of 32

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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