ST16C654D datasheet(4/49 Pages) EXAR

Part #	ST16C654D

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

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Manufacturer	EXAR [Exar Corporation]

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ST16C654/654D

5-68

Rev. 4.10

Figure 3, Block Diagram 68 Mode

D0-D7

R/-W

-RESET

A0-A4

-CS

IRQ

-RXRDY

-TXRDY

-RXRDY A-D

-TXRDY A-D

-DTR A-D

-RTS A-D

-CTS A-D

-RI A-D

-CD A-D

-DSR A-D

TX A-D

RX A-D

IRRX A-D

XTAL1

MIDI

XTAL2

Modem

Control

Logic

Transmit

FIFO

Registers

Flow

Control

Logic

Transmit

Shift

Register

Receive

FIFO

Registers

Flow

Control

Logic

Receive

Shift

Register

Ir

Encoder

Ir

Decoder

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