MC68HC11EA9 Datasheet, PDF (2/58 Pages) Motorola, Inc – 8 BIT HCMOS SINGLE CHIP MICROCONTOROLLER WITH A/D CONVERTER

Freescale Semiconductor, Inc.
TABLE OF CONTENTS
Section
Page
1
Introduction
1
1.1 Features ......................................................................................................................................1
2
Device Package Options and Ordering Information
5
2.1 Available Device Packages .........................................................................................................5
2.2 Ordering Information ...................................................................................................................7
3
Central Processing Unit
8
3.1 Programming Model ....................................................................................................................8
3.2 CPU Registers .............................................................................................................................8
3.2.1
Accumulators A, B, and D ................................................................................................8
3.2.2
Index Register X (IX) .......................................................................................................8
3.2.3
Index Register Y (IY) .......................................................................................................9
3.2.4
Stack Pointer (SP) ............................................................................................................9
3.2.5
Program Counter (PC) ......................................................................................................9
3.2.6
Condition Code Register (CCR) .......................................................................................9
3.2.7
Addressing Modes ............................................................................................................9
4
Operating Modes and On-Chip Memory
10
4.1 Single-Chip Mode ......................................................................................................................10
4.2 Expanded Mode ........................................................................................................................10
4.3 Test Mode .................................................................................................................................11
4.4 Bootstrap Mode .........................................................................................................................11
4.5 Mode Selection ..........................................................................................................................11
4.6 RAM ..........................................................................................................................................12
4.7 Bootstrap ROM ..........................................................................................................................12
4.8 Memory Map and Register Block ..............................................................................................12
4.9 ROM/EPROM/OTPROM ...........................................................................................................15
4.9.1
EPROM Emulation Mode ...............................................................................................15
4.9.2
Programming an Individual EPROM Address ................................................................16
4.9.3
Programming EPROM with Downloaded Data ...............................................................17
4.10 EEPROM ...................................................................................................................................18
4.10.1
Programming and Erasing EEPROM .............................................................................18
4.10.2
CONFIG Register ...........................................................................................................20
4.10.3
EEPROM Security ..........................................................................................................21
5
Resets and Interrupts
22
6
Parallel Input/Output
26
7
Timing System
31
7.1 Phase-Locked Loop Synthesizer ...............................................................................................32
7.2 Main Timer ................................................................................................................................34
7.3 Real-Time Interrupt ...................................................................................................................42
7.4 Pulse Accumulator ....................................................................................................................43
8
Serial Communications Interface
47
9
Analog-to-Digital Converter
54
MC68HC11EA9
2
For More Information On This Product,
MC68HC11EA9TS/D
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