MC68HC05SU3A Datasheet, PDF (7/80 Pages) Freescale Semiconductor, Inc – Fully static chip design featuring the industry standard 8-bit M68HC05 core

Freescale Semiconductor, Inc.
TABLE OF CONTENTS
Paragraph
Number
TITLE
Page
Number
1
GENERAL DESCRIPTION
1.1 Features.................................................................................................................1-1
1.2 Mask Options.........................................................................................................1-2
1.3 MCU Structure.......................................................................................................1-2
2
PIN DESCRIPTIONS
2.1
2.2
2.2.1
2.2.2
2.2.3
2.3
Functional Pin Descriptions ...................................................................................2-1
OSC1 and OSC2 Connections ..............................................................................2-2
Crystal Oscillator..............................................................................................2-3
External Clock..................................................................................................2-3
RC Oscillator Option ........................................................................................2-4
Pin Assignments ....................................................................................................2-5
3
INPUT/OUTPUT PORTS
3.1
3.1.1
3.1.2
3.2
3.3
3.4
3.5
3.5.1
Parallel Ports..........................................................................................................3-1
Port Data Registers..........................................................................................3-1
Port Data Direction Registers ..........................................................................3-2
Port A — Keyboard Interrupts (KBI) ......................................................................3-2
PD6 — IRQ2..........................................................................................................3-2
Programmable Current Drive .................................................................................3-3
Programmable Pull-Up Devices.............................................................................3-3
Port Option Register ........................................................................................3-3
4
MEMORY AND REGISTERS
4.1 I/O Registers..........................................................................................................4-1
TPG
MC68HC05SU3A
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