LPC2109 datasheet(11/46 Pages) NXP

Part #	LPC2109

Description	Single-chip 16/32-bit microcontrollers; 64/128/256 kB ISP/IAP flash with 10-bit ADC and CAN

PDF	46 Pages

Scroll/Zoom	100%

Manufacturer	NXP [NXP Semiconductors]

Direct Link	http://www.nxp.com

Logo

11 / 46 page

LPC2109_2119_2129

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 7 — 14 June 2011

11 of 46

NXP Semiconductors

LPC2109/2119/2129

Single-chip 16/32-bit microcontrollers

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.

6.3 On-chip SRAM

On-chip SRAM 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 SRAM for the

LPC2109 and 16 kB for the LPC2119 and LPC2129.

6.4 Memory map

The LPC2109/2119/2129 memory maps incorporate several distinct regions, as shown in

Figure 3.

In addition, the CPU interrupt vectors may be re-mapped to allow them to reside in either

flash memory (the default) or on-chip SRAM. This is described in Section 6.18 “System

control”.

LPC2109 Datasheet(PDF) 11 Page - NXP Semiconductors