TNT4882 RDN, WRN Signals

During write accesses, the TNT4882 latches data on the rising edge of WRN. The TNT4882 drives its data buses when

RDN is asserted during read accesses. The processor asserts DSN to indicate that an external device should place valid

data on the bus during a read access, and that valid data is on the data bus during a write access. The R/W signal

indicates the direction of data transfer on the bus. When Direct Memory Access (DMA) is used, DACKN is asserted

by the CPU to indicate that a word is being transferred. Since we are implementing single address DMA, DACKN and

R/W signals should be used to control RDN and WRN during DMA accesses. Table 2 shows the RDN and WRN

signals with respect to R/W, DSN, DACKN.

Table 2.

RDN and WRN Signals of TNT4882

TNT4882 DMA Signals

The processor has a built-in DMA controller so our system does not require an external DMA controller. The system

supports 16-bit Single Address DMA transfers between system memory and the TNT4882 FIFOs. Only one DMA

channel is used. Since MC68340 will start DMA when DREQN1 is asserted, the DRQ signal of the TNT4882 must be

inverted and then connected to the DREQN1 pin of MC68340. The DACKN signal from the TNT4882 can be

connected directly to the DACKN1 pin of MC68340. Figures 4 and 5 show the DMA read and write cycles

respectively.

Figure 4.

DMA Read (Memory to TNT4882) Timing Diagram

MC68340 TNT4882

R/W DSN DACKN RDN WRN

0 0 0 0 1

0 0 1 1 0

0 1 0 0 1

0 1 1 1 1

1 0 0 1 0

1 0 1 0 1

1 1 0 1 0

1 1 1 1 1

CPU Cycle

S0 S1 S2 S3 S4 S5 S0 S1 S2 S3 S4 S5 S0

DACKN

DMA Cycle

CLK

ADDR

ASN

DSN

R/W

DATA

DRQ

(TNT)

WRN

RDY1

1 2 3 4 5 6 7 8 9 ... 35 36

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R-Tech INV160 manuales

Manuales del propietario y guías del usuario para Sistema De Soldadura R-Tech INV160.
Ofrecemos 5 manuales en pdf R-Tech INV160 para descargar gratis por tipos de documentos: Especificaciones, Manual de usuario, Guía de instalación, Manual de instrucciones

R tech INV160 Especificaciones (18 paginas)

Marca: R-tech | Categoria: Welding System | Tamaño: 1.33 MB |

Tabla de contenidos

OPERATION INSTRUCTIONS

Safety Precautions

Controls and Settings

Operating Machine

Maintenance

Troubleshooting

R tech INV160 Manual de usuario (160 paginas)

Marca: R-tech | Categoria: Welding System | Tamaño: 15.10 MB |

Tabla de contenidos

Interpact

Contents

Who else offers such

... in a wide range

Who else covers

Local isolation

Industrial or commercial

Final distribution

Sub-distribution

Power distribution

Standards and certiﬁcations:

Designed to work

One-piece spreader

Manual source

A complete offering

Sub-distribution incomers

Interpact INS/INV

General characteristics

Speciﬁc application

Switch-disconnector selection

Complete source-changeover

Electrical and mechanical

Manual source-changeover

Connection accessories

Installation

Installation recommendations

Operating principle

Implementation

Interpact INS40 to 80

Interpact INS100 to 160

Use at high temperatures

Dimensions and connection

Interpact INS40 to 160

Interpact INS250-100 to 630

100

Interpact INV100 to 630

100

Interpact INS630b to 1600

104

Interpact INV630b to 1600

104

Interpact INS2000 to 2500

106

Interpact INV2000 to 2500

106

INS40 to 630, INV100 to 630

108

Complete source changeover

109

Installation of downstream

110

Front-panel accessories

111

Interpact INS250-100 to 250

112

Interpact INV100 to 250

112

Interpact INS320 to 630

113

Interpact INV320 to 630

113

Complementary technical

115

Protection of switch

116

Characteristics of

136

Catalogue numbers

139

INS40 to 160

140

INS40 to 160 (cont.)

142

INS250-100 to 630

143

INV100 to 630

144

INS250-100 to 250 and

145

INV100 to 250

145

INV100 to 250 (cont.)

146

INS320 to 630

148

INS630b to 2500

150

INV630b to 2500

151

INS630b to 2500 and

152

INV630b to 2500 (cont.)

153

Complete ﬁxed/FC device and

154

CSA C22-2 N° 5.2

156

R tech INV160 Guía de instalación (120 paginas)

Marca: R-tech | Categoria: Welding System | Tamaño: 18.18 MB |

Tabla de contenidos

Catalogue

PB100839

PB100840

PB100930-68

PB100842

General content

For maximum continuity

Presentation

Overview of solutions

Manual source-changeover

Remote-operated

N: opening of Normal source

N: closing of Normal source

Associated controllers

Operating sequences

COM communications option

Dimensions

Electrical diagrams

Catalogue numbers

Source-changeover systems

100

(cont.)

105

120

R tech INV160 Manual de instrucciones (32 paginas)

Marca: R-tech | Categoria: Welding System | Tamaño: 0.28 MB |

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INTRODUCTION

SAFETY PROFILE

SAFETY INFORMATION

SAFETY SYMBOLS

LOCATION

PERSONAL PROTECTION

SAFETY INSTRUCTIONS

FIRE PREVENTION

VENTILATION

ELECTROMAGNETIC COMPATIBILITY

PROTECTIVE WELDING GASSES

WELDER SPECIFICATIONS

MIG-GUN SPECIFICATIONS

WELDER INSTALLATION

MIG GUN INSTALLATION

Figure 3: Wire Installation

MIG WELDING

GASLESS WELDING

PREPARATION FOR WELDING

WELDING PROCEDURES

REPLACEMENT OF THE WIRE SPOOL

WELDING TIPS

SPOT WELDING

ADDITIONAL SAFETY INFORMATION

TROUBLESHOOTING INFORMATION

GENERAL OPERATING TIPS

FP-200 WIRE LINER REPLACEMENT

Figure 8: FP 120

FP 120 PARTS LIST

Figure 9: FP 130

FP 130 PARTS LIST

Figure 10: FP 160

FP 160 PARTS LIST

FIREPOWER LIMITED WARRANTY

St. Louis, MO 63105

314-721-5573

FAX 314-721-4822

R tech INV160 Manual de usuario (91 paginas)

Marca: R-tech | Categoria: Welding System | Tamaño: 3.17 MB |

Tabla de contenidos

LV switch-disconnectors

Interpact Merlin Gerin

40 to 2500 A

The various low-voltage

Interpact from 40 to 2500 A

Compact from 80 to 1250 A

See Compact catalogue

Masterpact from 800 to 6300 A

See Masterpact catalogue

Presentation

Interpact 40 to 2500 A

Coupling

Distribution

Isolation

Source changeover

Interpact INS range

Simplified installation

Enhanced modularity

For all fields of activity

Compliance with regulations

Interpact Schneider Electric

Functions and characteristics

General characteristics

Switch-disconnector selection

Interpact INS40 to 160

Interpact INS250

Interpact INS320 to 630

INS320 INS400 INS500 INS630

Interpact INV100 to 250

INV100 INV160 INV200 INV250

Interpact INV320 to 630

INV320 INV400 INV500 INV630

Interpact IN1000 to 2500

IN1000 IN1600 IN2500

Installation

Connection

Interpact INS250 to 630

Interpact INV100 to 630

Rear connection

Connection accessories

Distribution blocks

One-piece spreader

Insulation of live parts

Auxiliary contacts

Rotary handle

Disabling device closing

Keylock ccc

Mechanical ccc

Complete cc

Current measurements

Accessories

Installation and connection

Implementation

Interpact INS/INV320 to 630

Front connection of insulated

If 500 V i U i 690 V

Front connection with

Rear connection of Interpact

Installation of Interpact

INS40 to 160

Dimensions (mm)

Type C R

Type C1 C2 R1 R2 ØT U

On a backplate On a rail

Extended handle

Standard lateral handle

Side cutout

INS250 to 630

INV100 to 630

IN1000 to 2500

Type A (*) e F T

Installation of mechanical

Installation of downstream

For switch-disconnector

For ammeter module

Type A2 D1 D2 M6 M7

Installation of one-piece

Technical details

Protection

INV500 INV630

Use at high temperatures

Catalogue numbers

Complete device

Electrical auxiliaries

Rotary handles

INV100 to 630 (visible break)

INV100 to 250

∅5...8∅5...8

INS320 to 630

INV320 to 630

Schneider Electric SA

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