Throughout this data sheet, several conventions
are used to convey information. A list of these conventions are as follows:
- To identify a binary number or field, a lower case b follows the numbers. For example: 000b is a 3-bit binary field.
- To identify a hexadecimal number or field, a lower case h follows the numbers. For example: 8AFh is a 12-bit hexadecimal field.
- All other numbers that appear in this document that do not have either a b or h following the number are assumed to be decimal format.
- If the signal or terminal name has a bar above the name (for example, GRST), then this indicates the logical NOT function. When asserted, this signal is a logic low, 0, or 0b.
- Differential signal names end with P, N, +, or – designators. The P or + designators signify the positive signal associated with the differential pair. The N or – designators signify the negative signal associated with the differential pair.
- RSVD indicates that the referenced item is reserved.
- For each register bit in Register Maps, the software access method is identified in an access column. The legend for
this access column includes the following entries:
- r – read access by software
- u – updates by the host controller
internal hardware
- w – write access by software
- c – clear an asserted bit with a
write-back of 1b by software. Write of zero to the field has no effect
- s – the field may be set by a write
of one. Write of zero to the field has no effect
- na – not accessible or not
applicable