ST16C654 데이터 시트보기 (PDF) - Exar Corporation

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ST16C654

QUAD UART WITH 64-BYTE FIFO AND INFRARED (IrDA) ENCODER/DECODER

Exar Corporation 

ST16C654/654D

Figure 3, Block Diagram 68 Mode

D0-D7

R/-W

-RESET

A0-A4

-CS

IRQ

-RXRDY

-TXRDY

-RXRDY A-D

-TXRDY A-D

XTAL1

MIDI

XTAL2

Transmit

FIFO

Registers

Flow

Control

Logic

Receive

FIFO

Registers

Flow

Control

Logic

Transmit

Shift

Register

TX A-D

Ir

Encoder

Receive

Shift

Register

RX A-D

IRRX A-D

Ir

Decoder

Modem

Control

Logic

-DTR A-D

-RTS A-D

-CTS A-D

-RI A-D

-CD A-D

-DSR A-D

Rev. 4.10

5-68

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