AT89C5122DS-RDRUM datasheet(99/208 Pages) ATMEL

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AT89C5122DS-RDRUM Scheda tecnica(PDF) 99 Page - ATMEL Corporation

Il numero della parte	AT89C5122DS-RDRUM

Spiegazioni elettronici	C51 Microcontroller with USB and Smart Card Reader Interfaces

PDF	208 Pages

Scroll/Zoom	100%

Produttore elettronici	ATMEL [ATMEL Corporation]

Homepage	http://www.atmel.com

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99 / 208 page

AT83R5122, AT8xC5122/23

4202F–SCR–07/2008

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Endpoint FIFO reset

Before using an endpoint, its FIFO should be reset. This action resets the FIFO pointer

to its original value, resets the byte counter of the endpoint (UBYCTX register), and

resets the data toggle bit (DTGL bit in UEPCONX).

The reset of an endpoint FIFO is performed by setting to 1 and resetting to 0 the corre-

sponding bit in the UEPRST register.

For example, in order to reset the Endpoint number 2 FIFO, write 0000 0100b then 0000

0000b in the UEPRST register.

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