3.8.7. DnTRANS

The DnTRANS bus encodes information about the transfer. A memory management unit uses this signal to determine if an access is from a privileged mode. Therefore, you can use this signal to implement an access permission scheme. The encoding of DnTRANS is shown in Table 3.7.

Table 3.7. DnTRANS encoding

DnTRANS

Mode

0

User

1

Privileged

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