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MC68HC05BD3
MOTOROLA
i
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Number
Page
Number
TITLE
TABLE OF CONTENTS
1
GENERAL DESCRIPTION
1.1
Features.................................................................................................................1-1
2
PIN DESCRIPTION AND I/O PORTS
2.1
2.2
2.3
2.3.1
2.3.2
2.3.3
2.3.4
2.3.5
2.3.6
PIN DESCRIPTIONS.............................................................................................2-1
Pin Assignments....................................................................................................2-2
INPUT/OUTPUT PORTS.......................................................................................2-3
Port A...............................................................................................................2-3
Port B...............................................................................................................2-3
Port C...............................................................................................................2-4
Port D...............................................................................................................2-4
Input/Output Programming...............................................................................2-4
Port C and D Configuration Registers..............................................................2-5
3
MEMORY AND REGISTERS
3.1
3.2
3.3
3.4
3.5
3.6
3.7
Registers ...............................................................................................................3-1
RAM (MC68HC05BD3)..........................................................................................3-1
RAM (MC68HC705BD3/MC68HC05BD5).............................................................3-1
ROM (MC68HC05BD3).........................................................................................3-2
ROM (MC68HC05BD5).........................................................................................3-2
EPROM (MC68HC705BD3) ..................................................................................3-2
Bootstrap ROM......................................................................................................3-2
TPG