CSM9S12XDT512SLK Freescale Semiconductor, CSM9S12XDT512SLK Datasheet - Page 1071
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CSM9S12XDT512SLK
Manufacturer Part Number
CSM9S12XDT512SLK
Description
KIT STUDENT LEARNING 16BIT
Manufacturer
Freescale Semiconductor
Datasheet
1.MC9S12XD64CAA.pdf
(1348 pages)
Specifications of CSM9S12XDT512SLK
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Chapter 26
4 Kbyte EEPROM Module (S12XEETX4KV2)
26.1
This document describes the EETX4K module which includes a 4 Kbyte EEPROM (nonvolatile) memory.
The EEPROM memory may be read as either bytes, aligned words, or misaligned words. Read access time
is one bus cycle for bytes and aligned words, and two bus cycles for misaligned words.
The EEPROM memory is ideal for data storage for single-supply applications allowing for field
reprogramming without requiring external voltage sources for program or erase. Program and erase
functions are controlled by a command driven interface. The EEPROM module supports both block erase
(all memory bytes) and sector erase (4 memory bytes). An erased bit reads 1 and a programmed bit reads
0. The high voltage required to program and erase the EEPROM memory is generated internally. It is not
possible to read from the EEPROM block while it is being erased or programmed.
26.1.1
Command Write Sequence — A three-step MCU instruction sequence to execute built-in algorithms
(including program and erase) on the EEPROM memory.
26.1.2
26.1.3
Program, erase and erase verify operations (please refer to
Operations”
Freescale Semiconductor
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4 Kbytes of EEPROM memory divided into 1024 sectors of 4 bytes
Automated program and erase algorithm
Interrupts on EEPROM command completion and command buffer empty
Fast sector erase and word program operation
2-stage command pipeline
Sector erase abort feature for critical interrupt response
Flexible protection scheme to prevent accidental program or erase
Single power supply for all EEPROM operations including program and erase
Introduction
Glossary
Features
Modes of Operation
for details).
An EEPROM word (2 bytes) must be in the erased state before being
programmed. Cumulative programming of bits within a word is not allowed.
MC9S12XDP512 Data Sheet, Rev. 2.21
CAUTION
Section 26.4.1, “EEPROM Command
1073
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