MC68HC908AP16CFB datasheet(56/440 Pages) MOTOROLA

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FLASH Memory

Data Sheet

MC68HC908AP Family — Rev. 2.5

MOTOROLA

4.2 Functional Description

The FLASH memory consists of an array of 62,368 bytes for user

memory plus a block of 48 bytes for user interrupt vectors and one byte

for the mask option register. An erased bit reads as logic 1 and a

programmed bit reads as a logic 0. The FLASH memory page size is

defined as 512 bytes, and is the minimum size that can be erased in a

page erase operation. Program and erase operations are facilitated

through control bits in FLASH control register (FLCR). The address

ranges for the FLASH memory are:

•

$0860–$FBFF; user memory, 62,368 bytes

•

$FFD0–$FFFF; user interrupt vectors, 48 bytes

•

$FFCF; mask option register

Programming tools are available from Motorola. Contact your local

Motorola representative for more information.

NOTE:

A security feature prevents viewing of the FLASH contents.1

1. No security feature is absolutely secure. However, Motorola’s strategy is to make reading or

copying the FLASH difficult for unauthorized users.

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

MC68HC908AP16CFB Datasheet(PDF) 56 Page - Motorola, Inc