MC68HC705JP7 Datasheet, PDF (175/242 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Freescale Semiconductor, Inc.
Advance Information — MC68HC705JJ7/MC68HC705JP7
Section 12. Personality EPROM (PEPROM)
12.1 Contents
12.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
12.3 PEPROM Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
12.3.1 PEPROM Bit Select Register . . . . . . . . . . . . . . . . . . . . . . . 177
12.3.2 PEPROM Status and Control Register. . . . . . . . . . . . . . . . 178
12.4 PEPROM Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
12.5 PEPROM Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .180
12.6 PEPROM Erasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
12.2 Introduction
This section describes how to program the 64-bit personality erasable
programmable read-only memory (PEPROM). Figure 12-1 shows the
structure of the PEPROM subsystem.
NOTE: In packages with no quartz window, the PEPROM functions as one-time
programmable ROM (OTPROM).
MC68HC705JJ7 • MC68HC705JP7 — REV 4
MOTOROLA
Personality EPROM (PEPROM)
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Advance Information
175