ZiLOG Z80180 manuali

Zilog Z80180 Manuale Utente (326 pagine)

Marchio: Zilog | Categoria: Sensori | Dimensione: 4.83 MB |

Inglese

Indice

Family MPU

1

MANUAL OBJECTIVES

3

Intended Audience

3

Manual Organization

3

Sections

4

Appendices

4

Table of Contents

5

List of Figures

8

UM005003-0703

10

List of Tables

12

Status Signals 287

14

FEATURES

16

GENERAL DESCRIPTION

16

PIN DESCRIPTION

22

ARCHITECTURE

27

OPERATION MODES

30

0 and IOC is 0

32

CPU Timing

33

Wait State Generator

42

Bit 7 6 5 4

44

MWI1 MWI0 MWI1 MWI0

44

R/W R/W R/W R/W

44

1, selecting the

45

Processors Only)

46

SLP 2nd Op Code address

50

Add-On Features

51

STANDBY Mode

52

IDLE Mode

55

STANDBY-QUICK RECOVERY Mode

56

Internal I/O Registers

56

–0 Reserved ? ? Reserved

67

Memory Management Unit (MMU)

69

Figure 25. MMU Block Diagram

71

0 during I/O cycles

72

MMU Register Description

75

0 during RESET

77

1 while all bits

78

0. The logical 64KB

78

0000H to FFFFH)

78

Interrupts

80

Interrupt Vector Low Register

81

00H during RESET

82

N/A R/W R/W R/W

83

1 by the El (Enable

84

00000H was caused by

85

INT0 Mode 0

90

INT0 Mode 1

91

INT0 Mode 2

93

00H and

94

INT1, INT2

95

0. Each is also

96

Family MPU User Manual

100

Dynamic RAM Refresh Control

101

TR1 TRW* TR2

102

DMA Controller (DMAC)

105

107

DMAC Register Description

108

DMA Register Description

118

Bits 5–3

119

Bits 2–0

119

DMA Operation

119

Memory to Memory—Channel 0

120

00H) transfer

122

Memory to ASCI - Channel 0

124

Note: X = Don’t care

125

T1 T2 T3 T3T2T1

130

Processors

131

ASCI Register Description

132

08H, 09H)

134

1) these pins

149

1, then the CKA1/

149

0. Even after the

154

Figure 56. ASCI Clock

156

Baud Rate Generator

158

CSI/O Block Diagram

161

CSI/O Registers Description

162

Address = 0BH)

164

Interrupt Request

166

= 0) when

167

PRT Block Diagram

171

PRT Register Description

172

0FH, CHI, 16H, 17H)

174

Timer Control Register (TCR)

176

PRT Interrupts

179

PRT and RESET

179

Secondary Bus Interface

180

On-Chip Clock Generator

183

Miscellaneous

187

Software Architecture

188

CPU REGISTERS

190

Accumulator (A, A')

191

Flag Registers (F, F')

192

Interrupt Vector Register (I)

192

R Counter (R)

192

Index Registers (IX, and IY)

192

Stack Pointer (SP)

193

Program Counter (PC)

193

Flag Register (F)

193

Addressing Modes

195

Implied Register (IMP)

195

Register Direct (REG)

195

Register Indirect (REG)

196

Indexed (INDX)

197

Extended (EXT)

197

Immediate (IMMED)

198

Relative (REL)

198

IO (I/O)

199

DC Characteristics

200

Z80180 DC CHARACTERISTICS

201

Z8S180 DC CHARACTERISTICS

202

Z8L180 DC CHARACTERISTICS

204

AC Characteristics

208

Timing Diagrams

213

STANDARD TEST CONDITIONS

221

Instruction Set

223

CONDITION

224

RESTART ADDRESS

225

MISCELLANEOUS

226

DATA TRANSFER INSTRUCTIONS

238

Special Control Instructions

251

Instruction Summary

253

Op Code Map

263

DDH 22H : LD (mn), IX

264

Bus Control Signal Conditions

267

INTERRUPTS

295

Operating Modes Summary

297

REQUEST PRIORITY

298

OPERATION MODE TRANSITION

299

0000H (all DMA transfers)

301

Status Signals

303

PIN STATUS

304

–A17, A19 — Z 1 A 1

305

–D7— ZZAZ

305

INTERNAL I/O REGISTERS

309

Ch 0 Destination Mode 1,0

315

ORDERING INFORMATION

319

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