MC14469P Просмотр технического описания (PDF) - Motorola => Freescale

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Компоненты Описание

производитель

MC14469P

Addressable Asynchronous Receiver/Transmitter

Motorola => Freescale 

V+

1k

10 k

TRO

10 k

10 k

10 k

RI TRO

VSS

MC6850

ACIA

OR

UART

MASTER

STATION

RI TRO

VDD

VSS

ID7

RI TRO

VDD

VSS

ID7

RI TRO

VDD

VSS

ID7

S7 MC14469

A0,ID0 0

A1,ID1

A2,ID2

A3,ID3

A4,ID4

A5,ID5

A6,ID6

CS

SEND

ADDRESS

0000000

REMOTE MC14469

STATIONS

ADDRESS

0000001

S7 MC14469

1

A1,ID1

A2,ID2

A3,ID3

A4,ID4

A5,ID5

A6,ID6

CS

SEND

S7 MC14469

127

ADDRESS

1111111

CS

SEND

NOTE: For simplex operation the ID7 must be tied high, S7 must be tied

low, and the 7–bit ID must be the same as the 7–bit address (or set

to some unused address) to prevent erroneous responses.

Figure 6. Single Line, Simplex Data Transmission

V+

VDD

1k

1k

10 k

TRO

RI TRO

VSS

MC6850

ACIA

OR

UART

MASTER

STATION

MOTOROLA

10 k

10 k

10 k

RI TRO

VDD

VSS

ADDRESS MC14469

0000000 A0 0

A1

A2

A3

A4

A5

VAP

A6

SEND

RI TRO

VDD

VSS

ADDRESS

0000001

MC14469

1

A1

A2

A3

A4

A5

VAP

A6

SEND

RI TRO

VDD

VSS

ADDRESS

1111111

MC14469

127

VAP

SEND

REMOTE MC14469 STATIONS

Figure 7. Double Line, Full Duplex Data Transmission

MC14469

7

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