Freescale Semiconductor, Inc.
Advance Information — MC68HC908RFRK2
Section 4. FLASH 2TS Memory
4.1 Contents
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
FLASH 2TS Control Register . . . . . . . . . . . . . . . . . . . . . . . . . .45
FLASH 2TS Charge Pump Frequency Control. . . . . . . . . . . . .47
FLASH 2TS Erase Operation . . . . . . . . . . . . . . . . . . . . . . . . . .47
FLASH 2TS Program/Margin Read Operation . . . . . . . . . . . . .48
FLASH 2TS Block Protection . . . . . . . . . . . . . . . . . . . . . . . . . .51
FLASH 2TS Block Protect Register . . . . . . . . . . . . . . . . . . . . .52
4.10 Embedded Program/Erase Routines . . . . . . . . . . . . . . . . . . . .53
4.11 Embedded Function Descriptions. . . . . . . . . . . . . . . . . . . . . . .54
4.11.1 RDVRRNG Routine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
4.11.2 PRGRNGE Routine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
4.11.3 ERARNGE Routine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
4.11.4 REDPROG Routine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
4.11.5 Example Routine Calls. . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
4.12 Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
4.12.1 Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
4.12.2 Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
4.2 Introduction
This section describes the operation of the embedded FLASH 2TS
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.
MC68HC908RFRK2
MOTOROLA
Advance Information
FLASH 2TS Memory
43
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