UM10503
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2012. All rights reserved.
User manual
Rev. 1.3 — 6 July 2012
1198 of 1269
47.1 How to read this chapter
The EEPROM is available on parts LPC4357/53.
47.2 Basic configuration
The EEPROM is configured using the following registers:
•
See
for clocking and power control.
•
The EEPROM is reset by the EEPROM_RST (reset # 27).
•
The EEPROM interrupt is ORed with the interrupts from flash banks A and B and
connected to interrupt slot #4 in the NVIC.
47.3 Features
•
16384 byte EEPROM
•
Access via memory on the AHB bus
•
Less than 3 ms erase / program time
•
Endurance of > 100k erase / program cycles
47.4 General description
The EEPROM can be read and written/erased. A write operation involves two steps. The
first step is writing a minimum of 1 word (4 bytes) to a maximum of 32 words (128 bytes)
to the desired page in the 16 KB EEPROM address space at address 0x2004 0000. Step
two is an erase/program of that page into non-volatile memory. There are 128 pages
within the 16 KB EEPROM address space. The last page is not writable. Note that data
written to a page cannot be read back from the page address until the data have been
programmed into non-volatile memory.
UM10503
Chapter 47: LPC43xx EEPROM memory
Rev. 1.3 — 6 July 2012
User manual
Table 1065.EEPROM clocking and power control
Base clock
Branch clock
Operating frequency
EEPROM
BASE_M4_CLK
CLK_M4_EEPROM
up to 204 MHz