Freescale Semiconductor, Inc.
Technical Data — MC68HC11P2
Section 1. General Description
1.1 Contents
1.2
1.3
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
1.2 Introduction
The MC68HC11P2 8-bit microcomputer is a member of the M68HC11
family of HCMOS microcomputers. In addition to 32kbytes of ROM, the
MC68HC11P2 contains 1kbyte of RAM and 640 bytes of EEPROM. With
its advanced timer and communication features (including MI BUS(1))
the MC68HC11P2 is especially suitable for mobile communications and
automotive applications.
The MC68HC711P2 is an EPROM version of the MC68HC11P2, with
the User ROM replaced by a similar amount of EPROM. All references
to the MC68HC11P2 apply equally to the MC68HC711P2, unless
otherwise noted. References specific to the MC68HC711P2 are
italicised in the text.
1. The Motorola interconnect bus (MI BUS) is a serial communications protocol which supports
distributed real-time control efficiently and with a high degree of noise immunity. It allows data
MC68HC11P2 — Rev 1.0
Technical Data
General Description
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