LPC2888FET180/01 NXP [NXP Semiconductors], LPC2888FET180/01 Datasheet - Page 16

• Manufacturer Part Number: LPC2888FET180/01
• Description: 16/32-bit ARM microcontrollers; 8 kB cache, up to 1 MB flash, Hi-Speed USB 2.0 device, and SDRAM memory interface
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
LPC2880_LPC2888_3
Preliminary data sheet
6.4.1 Features
6.6.1 Features
6.5 DC-to-DC converters
6.6 External memory controller
Programming the flash in a running application is accomplished via a register interface on
the APB bus. The flash module can generate an interrupt request when burning or erasing
is completed.
The flash memory contains a buffer to allow for faster execution. Information is read from
the flash 128 bits at a time. The buffer holds this entire amount, which can represent four
32-bit ARM instructions. These captured instructions can them be executed without flash
read delays, improving system performance.
The LPC2880/2888 include two DC-to-DC converters providing an on-chip power system
which allows the device to be powered by a standard single cell battery (AA or AAA for
example) as well as receive power from a USB port or other power source.
The LPC2880/2888 need two supply voltages, 3.3 V and 1.8 V, for various internal
functions. When power is available from a higher voltage source such as USB, two
internal Low Dropout regulators (LDO regulators) reduce the incoming voltage to the level
needed by the LPC2880/2888. When only a low voltage battery supply is available, two
DC-to-DC converters boost the voltage up to the needed levels. Switching between the
two modes is supported.
The LPC2880/2888 External Memory Controller (EMC) is a multi-port memory controller
that supports asynchronous static memory devices such as RAM, ROM and flash, as well
as dynamic memories such as Single Data Rate SDRAM. It complies with ARM’s AMBA.
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Flash access for processor execution and data read is via the AHB bus.
Flash programming in a running application is via an APB register interface.
Initial programming or reprogramming is can be accomplished from the USB port.
Dynamic memory interface support including single data rate SDRAM.
Asynchronous static memory device support including RAM, ROM, and flash, with or
without asynchronous page mode.
Low transaction latency.
Read and write buffers to reduce latency and to improve performance.
8-bit and 16-bit static memory support.
16-bit SDRAM memory support.
Static memory features include:
– Asynchronous page mode read.
– Programmable wait states.
– Bus turnaround delay.
– Output enable and write enable delays.
– Extended wait.
16/32-bit ARM microcontrollers with external memory interface
Rev. 03 — 17 April 2008
LPC2880; LPC2888
© NXP B.V. 2008. All rights reserved.
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