UPD72042BGT datasheet, PDF - EEWORLD Datasheet

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UPD72042BGT: DescriptionSerial I/O Controller, 1 Channel(s), 0.002197265625MBps, CMOS, PDSO16, 0.375 INCH, PLASTIC, SOP-16; CategoryThe embedded processor and controller Microcontrollers and processors; File Size525KB，92 Pages; ManufacturerNEC Electronics

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UPD72042BGT Overview

Serial I/O Controller, 1 Channel(s), 0.002197265625MBps, CMOS, PDSO16, 0.375 INCH, PLASTIC, SOP-16

UPD72042BGT Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Maker	NEC Electronics
Parts packaging code	SOIC
package instruction	SOP,
Contacts	16
Reach Compliance Code	compliant
maximum clock frequency	6.29 MHz
Data encoding/decoding methods	NRZ
Maximum data transfer rate	0.002197265625 MBps
JESD-30 code	R-PDSO-G16
JESD-609 code	e0
length	10.2 mm
low power mode	YES
Number of serial I/Os	1
Number of terminals	16
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
Certification status	Not Qualified
Maximum seat height	2.9 mm
Maximum supply voltage	5.5 V
Minimum supply voltage	4.5 V
Nominal supply voltage	5 V
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal surface	TIN LEAD
Terminal form	GULL WING
Terminal pitch	1.27 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
width	7.2 mm
uPs/uCs/peripheral integrated circuit type	SERIAL IO/COMMUNICATION CONTROLLER, SERIAL

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DATA SHEET

PD72042A, 72042B

LSI DEVICES FOR Inter Equipment Bus

(IEBus

)

PROTOCOL CONTROL

MOS INTEGRATED CIRCUIT

The

PD72042A and

PD72042B are microcomputer peripheral LSI devices for IEBus protocol control.

The

PD72042A and

PD72042B perform all the processing required for layers 1 and 2 of the IEBus. The devices

incorporate large transmission and reception buffers, allowing the microcomputer to perform IEBus operations without

interruption. They also contain an IEBus driver and receiver, allowing them to directly connected to the bus directly.

FEATURES

•

Control of layers 1 and 2 of the IEBus protocol

• Support of a multi-master scheme

• Broadcast function

• Two communication modes having different

transmission speeds can be selected.

When operating

at 6 MHz

Mode 0

Mode 1

•

Microcomputer interface

Three-/two-wire serial I/O

• Transfer starting with MSB

• Transfer starting with LSB

watchdog timer.

PD72042A

PD72042B

•

Program crashes can be detected by means of a

•

Low power consumption (standby mode):

A (max)

When operating

at 6.29 MHz

Approx. 4.1 Kbps

Approx. 18 Kbps

Approx. 3.9 Kbps

Approx. 17 Kbps

•

Oscillator frequency (f ):

6 MHz, 6.29 MHz

• frequency accuracy:

±1.5%

5 V

±10%

•

Operating voltage:

Built-in IEBus driver and receiver

Transmission and reception buffers

Transmission buffer

Reception buffer

: 33 bytes, FIFO

: 40 bytes, FIFO (capable of

holding more than one frame

of reception data.)

ORDERING INFORMATION

Part number

Package

16-pin plastic SOP (375 mil)

Starting with MSB/LSB

MSB

LSB

PD72042AGT

PD72042BGT

The information in this document is subject to change without notice.

Document No. S13990EJ2V0DS00 (2nd edition)

(Previous No. ID-3649)

Date Published January 1999 N CP(N)

Printed in Japan

The mark

shows major revised points.

1995

PD72042A, 72042B

CONTENTS

1. PIN FUNCTIONS .............................................................................................................................

1.1

PIN FUNCTIONS .....................................................................................................................................

2. IEBus OPERATION .........................................................................................................................

2.1

2.2

OVERVIEW ..............................................................................................................................................

IEBus COMMUNICATION PROTOCOL ................................................................................................

2.2.1

2.2.2

2.2.3

2.2.4

2.3

2.4

2.5

Bus Mastership Determination (Arbitration) ...............................................................................

Communication Mode .................................................................................................................

Communication Address .............................................................................................................

Broadcast .....................................................................................................................................

TRANSMISSION PROTOCOL ...............................................................................................................

TRANSMISSION DATA (CONTENTS OF THE DATA FIELD) .............................................................

BIT FORMAT ...........................................................................................................................................

3. MICROCOMPUTER INTERFACE .................................................................................................. 22

3.1

3.2

TRANSFER METHOD ............................................................................................................................

DATA TRANSFER FORMAT ..................................................................................................................

3.2.1

3.2.2

3.3

3.4

3.5

Three-Wire Data Transfer (SEL = 1) ..........................................................................................

Two-Wire Data Transfer (SEL = 0) .............................................................................................

CONNECTION TO A MICROCOMPUTER .............................................................................................

STANDBY MODE SETTING AND CANCELLATION ............................................................................

RESET MODE SETTING AND CANCELLATION .................................................................................

4. REGISTERS .................................................................................................................................... 31

5. EXAMPLE TIMINGS FOR COMMUNICATION .............................................................................. 61

6. EXAMPLE MICROCOMPUTER PROCESSING FLOW ................................................................ 69

6.1

6.2

6.3

6.4

COMMUNICATION FLAGS ....................................................................................................................

MAIN ROUTINE ......................................................................................................................................

INTERRUPT ROUTINE ...........................................................................................................................

PROCESSING ROUTINES .....................................................................................................................

6.4.1

6.4.2

6.4.3

6.4.4

6.4.5

6.4.6

6.4.7

Communication Flag Initialization Routine .................................................................................

Command Processing Routine ...................................................................................................

Master Communication Processing Routine ..............................................................................

Slave Data Transmission Processing Routine ...........................................................................

Transmission Processing Routine ..............................................................................................

Reception Processing Routine ...................................................................................................

PD72042A or

PD72042B Initial Setting Routine .................................................................... 74

7. ELECTRICAL CHARACTERISTICS .............................................................................................. 84

8. PACKAGE DRAWING ..................................................................................................................... 88

DATA SHEET S13990EJ2V0DS00

UPD72042BGT Related Products

	UPD72042BGT	UPD72042AGT
Description	Serial I/O Controller, 1 Channel(s), 0.002197265625MBps, CMOS, PDSO16, 0.375 INCH, PLASTIC, SOP-16	Multi Protocol Controller, 1 Channel(s), 0.002197265625MBps, CMOS, PDSO16, 0.375 INCH, PLASTIC, SOP-16
Is it Rohs certified?	incompatible	incompatible
Parts packaging code	SOIC	SOIC
package instruction	SOP,	SOP,
Contacts	16	16
Reach Compliance Code	compliant	compliant
maximum clock frequency	6.29 MHz	6.29 MHz
Data encoding/decoding methods	NRZ	NRZ
Maximum data transfer rate	0.002197265625 MBps	0.002197265625 MBps
JESD-30 code	R-PDSO-G16	R-PDSO-G16
JESD-609 code	e0	e0
length	10.2 mm	10.2 mm
low power mode	YES	YES
Number of serial I/Os	1	1
Number of terminals	16	16
Maximum operating temperature	85 °C	85 °C
Minimum operating temperature	-40 °C	-40 °C
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	SOP	SOP
Package shape	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	NOT SPECIFIED	235
Certification status	Not Qualified	Not Qualified
Maximum seat height	2.9 mm	2.9 mm
Maximum supply voltage	5.5 V	5.5 V
Minimum supply voltage	4.5 V	4.5 V
Nominal supply voltage	5 V	5 V
surface mount	YES	YES
technology	CMOS	CMOS
Temperature level	INDUSTRIAL	INDUSTRIAL
Terminal surface	TIN LEAD	TIN LEAD
Terminal form	GULL WING	GULL WING
Terminal pitch	1.27 mm	1.27 mm
Terminal location	DUAL	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED	10
width	7.2 mm	7.2 mm
uPs/uCs/peripheral integrated circuit type	SERIAL IO/COMMUNICATION CONTROLLER, SERIAL	SERIAL IO/COMMUNICATION CONTROLLER, MULTI PROTOCOL

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