XR68C92IJ View Datasheet(PDF) - Exar Corporation

Part Name

Description

MFG CO.

XR68C92IJ

DUAL UNIVERSAL ASYNCHRONOUS RECEIVER AND TRANSMITTER

Exar Corporation 

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XR68C92/192

RX

RX

ENABLE

-RxRDY

-FFULL

-RxRDY/

-FFULL

-CS

OVERRUN

ERROR

-RTS

TX

TX

ENABLE

-TxRDY

R/-W

-CTS

-RTS

Rev. P1.10

D1

D2

D8

D9

D10

D11

D12

D13

D12, D13 Will be lost

due to RX disable

Status Data

(D1)

D11 Will be lost

due to overrun

Status Data Status Data Status Data

(D2)

(D3)

(D10)

Reset by

command

Figure 3: Receive Timing

XR6892-RX

D1

D2

D3

Break

D4

D5

Figure 4: Transmit Timing

27

XR6892-TX

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