MC68HC12 Datasheet, PDF (115/478 Pages) Motorola, Inc – The MC68HC912DT128A microcontroller unit (MCU) is a 16-bit device composed of standard on-chip peripherals including a 16-bit central processing unit

Technical Data — MC68HC912DT128A
Section 8. Flash Memory
8.1 Contents
8.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
8.3 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .116
8.4 Flash EEPROM Control Block . . . . . . . . . . . . . . . . . . . . . . . .116
8.5 Flash EEPROM Arrays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .116
8.6 Flash EEPROM Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
8.7 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .119
8.8 Programming the Flash EEPROM . . . . . . . . . . . . . . . . . . . . . 120
8.9 Erasing the Flash EEPROM . . . . . . . . . . . . . . . . . . . . . . . . . . 121
8.10 Stop or Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .121
8.11 Flash protection bit FPOPEN . . . . . . . . . . . . . . . . . . . . . . . . .122
8.2 Introduction
The four Flash EEPROM array modules 00FEE32K, 01FEE32K,
10FEE32K and 11FEE32K for the MC68HC912DT128A 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.
MC68HC912DT128A — Rev 4.0
MOTOROLA
Flash Memory
Technical Data
115