MC908JB16DWE Datasheet, PDF (59/332 Pages) Freescale Semiconductor, Inc – Microcontrollers

Technical Data — MC68HC908JB16
Section 4. FLASH Memory
4.1 Contents
4.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
4.3 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
4.4 FLASH Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
4.5 FLASH Block Erase Operation . . . . . . . . . . . . . . . . . . . . . . . . . 62
4.6 FLASH Mass Erase Operation . . . . . . . . . . . . . . . . . . . . . . . . . 63
4.7 FLASH Program Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . .64
4.8 FLASH Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
4.8.1 FLASH Block Protect Register . . . . . . . . . . . . . . . . . . . . . . . 66
4.9 ROM-Resident Routines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
4.9.1 Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
4.9.2 ERASE Routine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
4.9.3 PROGRAM Routine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
4.9.4 VERIFY Routine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
4.2 Introduction
This section describes the operation of the embedded FLASH memory.
This memory can be read, programmed, and erased from a single
external supply. The program and erase operations are enabled through
the use of an internal charge pump.
MC68HC908JB16 — Rev. 1.1
Freescale Semiconductor
FLASH Memory
Technical Data
59