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UM10503
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© NXP B.V. 2015. All rights reserved.
User manual
Rev. 2.1 — 10 December 2015
34 of 1441
3.1 How to read this chapter
The available peripherals and their memories vary for different parts.
•
Ethernet: available only on LPC436x/5x/3x, LPC43S6x/S5x/S3x, and
LPC4370/LPC43S70.
•
USB0: available only on LPC436x/5x/3x/2x/, LPC43S6x/S5x/S3x, and
LPC4370/LPC43S70.
•
USB1: available only on LPC436x/5x/3x, LPC43S6x/S5x/S3x, and
LPC4370/LPC43S70.
•
SRAM: see
.
•
Flash: see
•
ARM Cortex-M0SUB core: available on LPC4370/LPC43S70 and
LPC436x/LPC43S6x parts only.
The registers and memory regions corresponding to unavailable peripheral and memory
blocks are reserved.
3.2 Basic configuration
In the CREG block (see
), select the interface to access the 16 kB block of RAM
located at address 0x2000 C000. This RAM memory block can be accessed either by the
Embedded Trace Buffer (ETB) or be used as normal SRAM on the AHB bus.
Remark:
When the ETB is used, the 16 kB memory space at 0x2000 C000 must not be
used by any other process.
3.3 Memory configuration
3.3.1 On-chip static RAM
The LPC43xx/LPC43Sxx support up to 282 kB SRAM on flashless parts or up to 136 kB
on parts with on-chip flash with separate bus master access for higher throughput and
individual power control for low power operation (see
).
When the Embedded Trace Buffer is used (see ETBCFG register,
), the 16 kB
memory space at 0x2000 C000 must not be used by any other process.
UM10503
Chapter 3: LPC43xx/LPC43Sxx Memory mapping
Rev. 2.1 — 10 December 2015
User manual