LPC2144 NXP [NXP Semiconductors], LPC2144 Datasheet - Page 13

• Manufacturer Part Number: LPC2144
• Description: Single-chip 16-bit/32-bit microcontrollers; up to 512 kB flash with ISP/IAP, USB 2.0 full-speed device, 10-bit ADC and DAC
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
LPC2141_42_44_46_48_3
Product data sheet
6.3 On-chip static RAM
6.4 Memory map
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 LPC2141, LPC2142/44 and LPC2146/48
provide 8 kB, 16 kB and 32 kB of static RAM respectively.
In case of LPC2146/48 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 LPC2141/42/44/46/48 memory map incorporates several distinct regions, as shown
in
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
Fig 5. LPC2141/42/44/46/48 memory map
Figure
control”.
5.
3.75 GB
4.0 GB
3.5 GB
3.0 GB
2.0 GB
1.0 GB
0.0 GB
Rev. 03 — 19 October 2007
TOTAL OF 512 kB ON-CHIP NON-VOLATILE MEMORY
TOTAL OF 256 kB ON-CHIP NON-VOLATILE MEMORY
TOTAL OF 128 kB ON-CHIP NON-VOLATILE MEMORY
TOTAL OF 64 kB ON-CHIP NON-VOLATILE MEMORY
TOTAL OF 32 kB ON-CHIP NON-VOLATILE MEMORY
8 kB ON-CHIP USB DMA RAM (LPC2146/2148)
32 kB ON-CHIP STATIC RAM (LPC2146/2148)
16 kB ON-CHIP STATIC RAM (LPC2142/2144)
BOOT BLOCK (12 kB REMAPPED FROM
8 kB ON-CHIP STATIC RAM (LPC2141)
RESERVED ADDRESS SPACE
RESERVED ADDRESS SPACE
RESERVED ADDRESS SPACE
RESERVED ADDRESS SPACE
ON-CHIP FLASH MEMORY
AHB PERIPHERALS
VPB PERIPHERALS
(LPC2148)
(LPC2146)
(LPC2144)
(LPC2142)
(LPC2141)
LPC2141/42/44/46/48
Single-chip 16-bit/32-bit microcontrollers
002aab558
0xFFFF FFFF
0xF000 0000
0xE000 0000
0xC000 0000
0x8000 0000
0x7FFF FFFF
0x7FFF D000
0x7FFF CFFF
0x7FD0 2000
0x7FD0 1FFF
0x7FD0 0000
0x7FCF FFFF
0x4000 8000
0x4000 7FFF
0x4000 4000
0x4000 3FFF
0x4000 2000
0x4000 1FFF
0x4000 0000
0x3FFF FFFF
0x0008 0000
0x0007 FFFF
0x0004 0000
0x0003 FFFF
0x0002 0000
0x0001 FFFF
0x0001 0000
0x0000 FFFF
0x0000 8000
0x0000 7FFF
0x0000 0000
Section 6.19
© NXP B.V. 2007. All rights reserved.
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