Siemens EF 88H Series Manual de usuario descargar pdf (Pagina 77)

Semiconductor Group 6-43

On-Chip Peripheral Components

C501

Figure 6-23

Serial Interface, Mode 2 and 3, Functional Diagram

MCS02105

Internal Bus

TB8

SBUF

Zero Detector

D

S

CLK

Q

Data

Send

1-to-0

Transition

Detector

1

÷ 16

TX Control

Shift

Start

TX Clock

TI

RX Control

Start

RI Load

Shift

SBUF

RX Clock

Serial

Port

Interrupt

Sample

Bit

Detector

(9Bits)

Input Shift Register

1FF

SBUF

Internal Bus

Write

to

SBUF

TXD

Baud

Rate

Clock

RXD

Shift

Load

SBUF

Read

SBUF

&

1

÷ 16

Stop Bit

Generation

_

<

_

<

1 2 ... 72 73 74 75 76 77 78 79 80 81 82 ... 120 121

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