XR16C872IQ View Datasheet(PDF) - Exar Corporation

Part Name

Description

MFG CO.

XR16C872IQ

Dual UART with 1284 Parallel Port and Plug-and-Play Controller

Exar Corporation 

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Preliminary

XR16C872

PD0-7

BUSY

ACK#

AUTOFD#

T39

T40

T41

T42

T43

T44

T41

7836ECR

Figure 22. Parallel Port Reverse Timing in ECP Mode

A0-2, A10

D0-D7

IOW#

IOCHRDY

T45

T46

T47

T49

T48

T51

T50

T52

7836EPW

Figure 23. Address or Data Write Timing in EPP Mode

Rev. P1.00

57

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