MC68HC912DG128 Datasheet, PDF (419/452 Pages) Motorola, Inc – Microcontrollers

Freescale Semiconductor, Inc.
Technical Data — MC68HC912DG128
Section 21. Appendix: MC68HC912DG128A Flash
21.1 Contents
21.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 419
21.3 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 420
21.4 Flash EEPROM Control Block . . . . . . . . . . . . . . . . . . . . . . . . 420
21.5 Flash EEPROM Arrays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 420
21.6 Flash EEPROM Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . 421
21.7 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .423
21.8 Programming the Flash EEPROM . . . . . . . . . . . . . . . . . . . . . 424
21.9 Erasing the Flash EEPROM . . . . . . . . . . . . . . . . . . . . . . . . . . 425
21.10 Stop or Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .425
21.2 Introduction
The four Flash EEPROM array modules 00FEE32K, 01FEE32K,
10FEE32K and 11FEE32K for the 68HC912DG128A serve as
electrically erasable and programmable, non-volatile ROM emulation
memory. The modules can be used for program code that must either
execute at high speed or is frequently executed, such as operating
system kernels and standard subroutines, or they can be used for static
data which is read frequently. The Flash EEPROM module is ideal for
program storage for single-chip applications allowing for field
reprogramming.
MC68HC912DG128 — Rev 3.0
MOTOROLA
Appendix: MC68HC912DG128A Flash
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Technical Data
419