MC68HC705P9 Datasheet, PDF (31/160 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Freescale Semiconductor, Inc.
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
MC68HC705P9 — Rev. 4.0
MOTOROLA
Memory
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Technical Data
31