Добавил:
Опубликованный материал нарушает ваши авторские права? Сообщите нам.
Вуз: Предмет: Файл:
Single- and Multi-Chip Microcontroller Interfacing For the Motorola 68HC12 (G.J. Lipovski, 1999).pdf
Скачиваний:
111
Добавлен:
12.08.2013
Размер:
41.97 Mб
Скачать

List of Figures

Figure

Title

Page

Figure 1,1.

Analogy to the von Neumann Computer

3

Figure 1.2.

Registers in the 6812

13

Figure 1.3,

Block Diagram Showing the Effect of an Instruction

31

Figure 1.4.

Organization of a von Neumann Computer

32

Figure 1.5.

Single-Chip Mode of the MC68HC812A4

32

Figure 1.6.

Expanded Wide Multiplexed Bus Mode of the MC68HC812A4

33

Figure 1.7.

Single-Chip Mode of the MC68HC912B32

34

Figure 1.8.

Expanded Wide Multiplexed Bus Mode of the MC68HC912B32

34

Figure 1.9.

Memory Map of 6812 Microcontrollers

35

Figure 2.1.

Conditional Statements

50

Figure 2.2.

Case Statements

52

Figure 2.3.

Loop Statements

53

Figure 2.4.

A Huffman Coding Tree

62

Figure 2.5.

An Object and its Pointers

78

Figure 2.6.

Other Huffman Codes

88

Figure 3.1.

Voltage Waveforms, Signals, and Variables

94

Figure 3.2.

Some Common Gates

98

Figure 3.3.

Logic Diagrams for a Popular Driver and Register

99

Figure 3.4.

16R4 PAL Used in Microcomputer Designs

103

Figure 3.5.

Some Timing Relationships

105

Figure 3.6.

Timing Relationships for the MC68HC812A4

105

Figure 3,7.

Timing Relationships for the MC68HC912B32

107

Figure 3.8.

Address and Data Bus Signals

109

Figure 3.9.

Decoding for Table 3.1

110

Figure 3.10.

Common Integrated Circuits Used in Decoders

111

Figure 3.11.

Logic Design of Minimal Complete Decoder

112

Figure 3.12.

A 74HC74

116

Figure 3.13.

Some MSI I/O Chips

117

Figure 4.1.

Logic Diagrams for I/O Devices for a Narrow Expanded Bus

124

Figure 4.2.

A Readable Output Port for a Narrow Expanded Bus

124

Figure 4.3. An Unusual I/O Port

127

Figure 4.4.

A Set Port

129

Figure 4.5.

Address Output Techniques

130

Figure 4.6.

MC68HC812A4 Parallel I/O Ports.

138

Figure 4.7.

MC68HC812A4 Parallel I/O Control Ports

139

Figure 4.7.

MC68HC912B32 Parallel I/O Ports

140

Figure 4.9.

MC68HC812B32 Parallel I/O Control Ports

141

Figure 4.10.

Traffic Light

148

Figure 4.11.

Mealy Sequential Machine

151

xvn

Hi

List of Figures

gure 4.12.

A Linked-List Structure

152

gure 4.13.

Connections for a Chip Tester

154

gure 4.14.

The74HCOO

155

gure 4.15.

M68ISA Time-of-Day Chip

163

gure 4.16.

Connections to an LCD Display

165

gure 4.17.

Simple Serial Input/Output Ports

167

gure 4.18.

Configurations of Simple Serial Input/Output Registers

168

gure 4.19.

Flow Chart for Series Serial Data Output

170

gure 4.20.

Dallas Semiconductor 1620 Digital Thermometer

171

gure 4.21.

SPI Data, Control, and Status Ports

173

gure 4.22.

Multicomputer Communication System Using the SPI

174

gure 4.23.

Some ICs for I/O

185

gure 5.1.

Paper Tape Hardware

194

gure 5.2.

State Diagram for I/O Devices

195

gure 5.3.

Flow charts for Programmed I/O

198

gure 5.4.

Key Wakeup Ports for the MC68HC812A4

199

gure 5.5.

Infrared Control

202

gure 5.6.

Magnetic Card Reader

202

gure 5.7.

BSRX-10

203

gure 5.8.

Key Wakeup Interrupt Request Path

210

gure 5.9.

IRQ Interrupt Request Path

213

gure 5.10.

MC68HC812A4 Polled Interrupt Request Path

224

gure 5.11.

MC68HC912B32 Polled Interrupt Request Path

225

gure 5.12.

Flow Chart for Round-robin Interrupt Polling

226

gure 5.13.

MC68HC812A4 Vector Interrupt Request Path

229

gure 5.14.

MC68HC912B32 Vector Interrupt Request Path

230

gure 5.15.

Keys and Keyboards

232

gure 5.16.

SPI Network

235

gure 5.17.

Bar Code Frames

236

gure 5.18.

X-10 Frame

242

gure 5.19.

Periodic Interrupt Device

244

gure 5.20.

Centronics Parallel Printer Port

250

gure 5.21.

Connections for Context Switching

261

gure 5.22.

Fast Synchronization Mechanisms Using Memory Organizations

263

gure 5.23.

Indirect Memory Using an MCM6264D-45

264

gure 5.24.

Synchronization Mechanisms Summarized

267

gure 5.25.

74HC266

271

gure 6.1.

MC68HC812A4 Mode Port

278

gure 6.2.

Memory Maps

278

gure 6.3.

MC68HC812A4 Port E Assignment Register

280

gure 6.4.

MC68HC812A4 Internal Memory Map Control Ports

280

gure 6.5.

MC68HC812A4 Chip Select Memory Map

281

gure 6.6.

MC68HC812A4 Chip Select Registers

282

gure 6.7.

Use of Chip Select Lines

282

gure 6.8.

MC68HC812A4 Memory Expansion Ports

284

List of Figures

xix

Figure 6.9.

MC68HC812A4 Memory Expansion Mapping

285

Figure 6.10.

MC68HC812A4 EEPROM Control Ports

287

Figure 6,11.

MC68HC912B32 Flash Control Ports

288

Figure 6.12.

MC68HC812A4 Clock Control

289

Figure 6.13.

An MCM6264D-45 Memory System

29!

Figure 6.14.

Analysis of Memory Timing

292

Figure 6.15.

MC68HC912B32 Address Demultiplexing

293

Figure 6.16.

8K-by-16-bitWordWide Expanded Mode Memory System

294

Figure 6.17.

BackgroundDebug Module

295

Figure 7.1.

Waveforms of Alternating Voltage Signals

307

Figure 7,2.

Position Transducers

310

Figure 7.3.

Power OutputDevices

315

Figure 7.4.

Triac Control Techniques

316

Figure 7.5.

OperationalAmplifierCircuits

318

Figure 7.6.

Analog Switches

320

Figure 7.7.

A Practical Voltage Follower

324

Figure 7.8.

Practical Analog Switches

325

Figure 7.9.

555 Timer

326

Figure 7.10.

Some Filters

328

Figure 7.11.

Selecting Inputs for a Stereo Preamplifier

329

Figure 7.12.

Computer Control of Amplification

331

Figure

7.13.

Nonlinear Signal Conditioning

333

Figure 7.14.

D-to-A Converters

336

Figure 7.15.

The Crystal Semiconductor CS4330

337

Figure 7.16.

A-to-D Converters

339

Figure 7.17.

Frequency-to-Voltage Conversion

342

Figure 7.18.

Voltage-to-Frequency Conversion

342

Figure 7.19.

Phase-locked Loop

344

Figure 7.20.

Data Acquisition System

345

Figure 7.21.

Serial InterfaceA-to-D Converter

347

Figure 7.22.

A-to-D Subsystem of the MC68HC812A4

348

Figure 7.23.

The Spline Technique

35!

Figure 7.24.

Feedback Control

351

Figure

7.25.

Some OP AMP Circuits

356

Figure

8.1.

The Counter/Timer Subsystem

363

Figure 8.2.

Output Compare Logic

364

Figure 8.3.

Pulse-Width Module Ports

367

Figure

8.4.

A Touch-Tone Generator

371

Figure 8.5. Timing of Some Pulses

377

Figure

8.6.

Output Compare 7 Ports

377

Figure 8.7.

Input Capture

382

Figure

8.8.

The Pulse Accumulator

386