MC68HC11P2 Datasheet, PDF (73/268 Pages) Motorola, Inc – Microcontrollers

Freescale Semiconductor, Inc.
Technical Data — MC68HC11P2
Section 4. Parallel Input/Output
4.1 Contents
4.2 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
4.3 Port A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74
4.4 Port B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
4.5 Port C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
4.6 Port D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78
4.7 Port E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
4.8 Port F . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80
4.9 Port G. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
4.10 Port H . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82
4.11 Internal pull-up/pull-down resistors . . . . . . . . . . . . . . . . . . . 83
4.12 System configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
4.2 Introduction
The MC68HC11P2 has up to 54 input/output lines and 8 input-only lines,
depending on the operating mode. To enhance the I/O functions, the
data bus of this microcontroller is nonmultiplexed. The following table is
a summary of the configuration and features of each port.
MC68HC11P2 — Rev 1.0
Parallel Input/Output
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Technical Data