AT91SAM7S64 datasheet(32/42 Pages) ATMEL

Il numero della parte	AT91SAM7S64

Spiegazioni elettronici	AT91 ARM짰 Thumb짰-based Microcontrollers

PDF	42 Pages

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Produttore elettronici	ATMEL [ATMEL Corporation]

Homepage	http://www.atmel.com

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6175BS–ATARM–04-Nov-05

AT91SAM7S Series Summary

11.2

Peripheral Multiplexing on PIO Lines

The AT91SAM7S Series features one PIO controller, PIOA, that multiplexes the I/O lines of the

peripheral set.

PIO Controller A controls 32 lines (21 lines for AT91SAM7S32). Each line can be assigned to

one of two peripheral functions, A or B. Some of them can also be multiplexed with the analog

inputs of the ADC Controller.

Table 11-1 on page 33 defines how the I/O lines of the peripherals A, B or the analog inputs are

multiplexed on the PIO Controller A. The two columns “Function” and “Comments” have been

inserted for the user’s own comments; they may be used to track how pins are defined in an

application.

Note that some peripheral functions that are output only may be duplicated in the table.

All pins reset in their Parallel I/O lines function are configured in input with the programmable

pull-up enabled, so that the device is maintained in a static state as soon as a reset is detected.

AT91SAM7S64 Scheda tecnica(PDF) 32 Page - ATMEL Corporation