mc68hc908mr24 Freescale Semiconductor, Inc, mc68hc908mr24 Datasheet - Page 57

• Manufacturer Part Number: mc68hc908mr24
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Advance Information — MC68HC908MR24
4.1 Contents
4.2 Introduction
4.3 Functional Description
MC68HC908MR24 — Rev. 4.1
Freescale Semiconductor
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
4.10
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.
The FLASH memory is an array of 24,064 bytes with an additional
46 bytes of user vectors and one byte of block protection. An erased bit
reads as a logic 0 and a programmed bit reads as a logic 1. Program and
erase operations are facilitated through control bits in a memory mapped
register. Details for these operations appear later in this section.
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
FLASH Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
FLASH Charge Pump Frequency Control . . . . . . . . . . . . . . . . 60
FLASH Erase Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
FLASH Program/Margin Read Operation . . . . . . . . . . . . . . . . . 62
FLASH Block Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
FLASH Block Protect Register . . . . . . . . . . . . . . . . . . . . . . . . . 66
Wait Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
FLASH Memory
Section 4. FLASH Memory
Advance Information
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