LPC2129 NXP Semiconductors, LPC2129 Datasheet - Page 11

• Manufacturer Part Number: LPC2129
• Description: Single-chip 16/32-bit microcontrollers; 64/128/256 kB ISP/IAP fash
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Product data sheet
LPC2109_2119_2129_6
6.3 On-chip static RAM
6.4 Memory map
However, the ISP flash erase command can be executed at any time (no matter whether
the CRP is on or off). Removal of CRP is achieved by erasure of full on-chip user flash.
With the CRP off, full access to the chip via the JTAG and/or ISP is restored.
On-chip static RAM may be used for code and/or data storage. The SRAM may be
accessed as 8 bit, 16 bit, and 32 bit. The LPC2109/2119/2129 provide 8 kB of static RAM
for the LPC2109 and 16 kB for the LPC2119 and LPC2129.
The LPC2109/2119/2129 memory maps incorporate several distinct regions, as shown in
Figure
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
“System
3.
control”.
Rev. 06 — 10 December 2007
LPC2109/2119/2129
Single-chip 16/32-bit microcontrollers
Section 6.18
© NXP B.V. 2007. All rights reserved.
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