Intel E3815 FH8065301567411 Data Sheet
Product codes
FH8065301567411
Register Access Methods
Intel
®
Atom™ Processor E3800 Product Family
68
Datasheet
§
R/WC
Read/Write Clear
A register bit with this attribute can be read and written. However, a write
of 1 clears (sets to 0) the corresponding bit and a write of 0 has no effect.
of 1 clears (sets to 0) the corresponding bit and a write of 0 has no effect.
R/WO
Read/Write-Once
A register bit with this attribute can be written only once after power up.
After the first write, the bit becomes read only.
After the first write, the bit becomes read only.
R/WLO
Read/Write, Lock-
Once
A register bit with this attribute can be written to the non-locked value
multiple times, but to the locked value only once. After the locked value
has been written, the bit becomes read only.
multiple times, but to the locked value only once. After the locked value
has been written, the bit becomes read only.
Default
Default
When the processor is reset, it sets its registers to predetermined default
states. The default state represents the minimum functionality feature set
required to successfully bring up the system. Hence, it does not represent
the optimal system configuration. It is the responsibility of the system
initialization software to determine configuration, operating parameters,
and optional system features that are applicable, and to program the
processor registers accordingly.
states. The default state represents the minimum functionality feature set
required to successfully bring up the system. Hence, it does not represent
the optimal system configuration. It is the responsibility of the system
initialization software to determine configuration, operating parameters,
and optional system features that are applicable, and to program the
processor registers accordingly.
Table 41. Register Access Types and Definitions (Sheet 2 of 2)
Access Type
Meaning
Description