Intel Computer Hardware I/O Processor Manuale Utente Pagina 34

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34 Evaluation Platform Board Manual
Intel
®
IQ80332 I/O Processor
Hardware Reference Section
3.6.7 Battery Status
A CPLD on the IQ80332 provides the following status for the battery. Please see Section 4.2.2,
“Peripheral Bus Memory Map” on page 47 for more details on addressing the CPLD.
Table 13. Battery Status Buffer Requirements
BIT
Read/
Write
Name Description
0 R Battery Present
0 = No backup battery
1 = Battery backup is present
1 R Battery Charged
0 = Battery is not fully charged
1 = Battery is fully charged
2 R Battery Discharged
0 = Battery backup is not fully discharged
1 = Battery backup is fully discharged
3 R/W Battery Enable
0 = Disable battery backup
1 = Enable battery backup
4-7 * Reserved Undefined
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