MC68HC705J1ACPE Datasheet, PDF (33/162 Pages) Freescale Semiconductor, Inc – Freescale Semiconductor, Inc.

Freescale Semiconductor, Inc.
Technical Data — MC68HC705J1A
Section 2. Memory
2.1 Contents
2.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
2.3 Memory Map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
2.4 Input/Output Register Summary . . . . . . . . . . . . . . . . . . . . . . . .35
2.5 RAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
2.6 EPROM/OTPROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
2.6.1 EPROM/OTPROM Programming . . . . . . . . . . . . . . . . . . . . . 38
2.6.2 EPROM Programming Register . . . . . . . . . . . . . . . . . . . . . 39
2.6.3 EPROM Erasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
2.7 Mask Option Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
2.8 EPROM Programming Characteristics . . . . . . . . . . . . . . . . . . . 43
2.2 Introduction
This section describes the organization of the on-chip memory
consisting of:
• 1232 bytes of user erasable, programmable read-only memory
(EPROM), plus eight bytes for user vectors
• 64 bytes of user random-access memory (RAM)
MC68HC705J1A — Rev. 4.0
Memory
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Technical Data