4.1.2. Notation

Throughout this section, the following terms and abbreviations are used:

unpredictable (unp)

If specified for reads: the data returned when reading from this location is unpredictable—it could have any value.

If specified for writes: writing to this location causes unpredictable behaviour or an unpredictable change in device configuration.

should be zero (sbz)

When writing to this location, all bits of this field should be 0.

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