SAM3SD8C Atmel Corporation, SAM3SD8C Datasheet - Page 34

• Manufacturer Part Number: SAM3SD8C
• Manufacturer: Atmel Corporation

9.2
9.3
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APB/AHB Bridge
Peripheral Signal Multiplexing on I/O Lines
SAM3S8/SD8
The SAM3S8/SD8 embeds One Peripheral Bridge:
The peripherals of the bridge are clocked by MCK.
The SAM3S8/SD8 features 2 PIO controllers on 64-pin versions (PIOA and PIOB) or 3 PIO con-
trollers on the 100-pin version (PIOA, PIOB and PIOC), that multiplex the I/O lines of the
peripheral set.
The SAM3S8/SD8 64-pin and 100-pin PIO Controllers control up to 32 lines. Each line can be
assigned to one of three peripheral functions: A, B or C. The multiplexing tables in the following
paragraphs define how the I/O lines of the peripherals A, B and C are multiplexed on the PIO
Controllers. The column “Comments” has been inserted in this table for the user’s own com-
ments; it may be used to track how pins are defined in an application.
Note that some peripheral functions which are output only, might be duplicated within the tables.
11090A–ATARM–10-Feb-12