LPC2157_2158 NXP Semiconductors, LPC2157_2158 Datasheet - Page 16

• Manufacturer Part Number: LPC2157_2158
• Description: The LPC2157/2158 is a multi-chip module consisting of a LPC2138/2148 single-chipmicrocontroller combined with a PCF8576D Universal LCD driver in a low-cost 100-pinpackage
• Manufacturer: NXP Semiconductors

NXP Semiconductors
LPC2157_2158_2
Product data sheet
6.4 Memory map
6.5 Interrupt controller
In case of LPC2158 only, an 8 kB SRAM block intended to be utilized mainly by the USB
can also be used as a general purpose RAM for data storage and code storage and
execution.
The LPC2157/2158 memory map incorporates several distinct regions, as shown in
Figure
In addition, the CPU interrupt vectors may be remapped to allow them to reside in either
flash memory (the default) or on-chip static RAM. This is described in
“System
The Vectored Interrupt Controller (VIC) accepts all of the interrupt request inputs and
categorizes them as Fast Interrupt Request (FIQ), vectored Interrupt Request (IRQ), and
non-vectored IRQ as defined by programmable settings. The programmable assignment
scheme means that priorities of interrupts from the various peripherals can be dynamically
assigned and adjusted.
Fig 6.
6.
control”.
LPC2157/2158 memory map
3.75 GB
4.0 GB
3.5 GB
3.0 GB
2.0 GB
1.0 GB
0.0 GB
Rev. 02 — 9 February 2009
32 kB ON-CHIP STATIC RAM (LPC2157/2158)
512 kB ON-CHIP NON-VOLATILE MEMORY
BOOT BLOCK (RE-MAPPED FROM
RESERVED ADDRESS SPACE
RESERVED ADDRESS SPACE
RESERVED ADDRESS SPACE
ON-CHIP FLASH MEMORY
AHB PERIPHERALS
APB PERIPHERALS
(LPC2157/2158)
Single-chip 16-bit/32-bit microcontrollers
LPC2157/2158
002aad402
0xFFFF FFFF
0xF000 0000
0xE000 0000
0xC000 0000
0x8000 0000
0x7FFF FFFF
0x7FFF D000
0x7FFF CFFF
0x4001 8000
0x4000 7FFF
0x4000 4000
0x0008 0000
0x0007 FFFF
0x0001 0000
Section 6.19
© NXP B.V. 2009. All rights reserved.
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