MC68HC912BD32 Datasheet, PDF (69/292 Pages) Freescale Semiconductor, Inc – Advance Information

Freescale Semiconductor, Inc.
Flash EEPROM
Flash EEPROM
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Flash EEPROM Control Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Flash EEPROM Array . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Flash EEPROM Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Programming the Flash EEPROM . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Erasing the Flash EEPROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Program/Erase Protection Interlocks . . . . . . . . . . . . . . . . . . . . . . . . . 78
Stop or Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Introduction
The 32K byte Flash EEPROM module for the MC68HC912BD32 serves
as electrically erasable and programmable, non-volatile ROM emulation
memory. The module 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 it can be used for static
data which is read frequently. The Flash EEPROM is ideal for program
storage for single-chip applications allowing for field reprogramming.
1-flash
Flash EEPROM
For More Information On This Product,
Go to: www.freescale.com
MC68HC912BD32 Rev 1.0