MC68HC705P9CS datasheet(31/160 Pages) FREESCALE

31 / 160 page

MC68HC705P9 — Rev. 4.0

Technical Data

MOTOROLA

Memory

Technical Data — MC68HC705P9

Section 3. Memory

3.1 Contents

3.2

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

3.3

Memory Map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

3.4

Input/Output Register Summary . . . . . . . . . . . . . . . . . . . . . . . .33

3.5

RAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

3.6

EPROM/OTPROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

3.6.1

EPROM/OTPROM Programming . . . . . . . . . . . . . . . . . . . . . 37

3.6.1.1

EPROM Programming Register . . . . . . . . . . . . . . . . . . . .38

3.6.1.2

Bootloader ROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

3.6.2

EPROM Erasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

3.7

Mask Option Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

3.2 Features

Features include:

•

2104 bytes of EPROM/OTPROM

–

48 bytes of page zero EPROM/OTPROM

–

Eight locations for user vectors

•

128 bytes of user RAM

•

Bootloader ROM

Freescale Semiconductor, Inc.

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