Atmel ARM-Based Evaluation Kit AT91SAM9N12-EK AT91SAM9N12-EK Data Sheet

Product codes

AT91SAM9N12-EK

284

SAM9N12/SAM9CN11/SAM9CN12 [DATASHEET]

11063K–ATARM–05-Nov-13

25.

Fuse Controller (FUSE)

25.1

Description

The Fuse Controller (FUSE) supports software fuse programming through a 32-bit register, only fuses set to level “1” are
programmed.

It reads the fuse states on startup and stores them into 32-bit registers. The first 8 Fuse Status registers (FUSE_SRx)
can be masked and will read as a value of “0” regardless of the fuse state when masked.

25.2

Embedded Characteristics



Software Fuse Programming



User Write Access for Fuse



Part of Fuse can be Masked After Read

25.3

Block Diagram

Figure 25-1. Fuse Controller Block Diagram

Fuse
Cells

Fuse

Controller

Fuse States

Controls