Intel IQ80333 - Manual (Page 34)

34 Customer Reference Board Manual
Intel® IQ80333 I/O Processor
Hardware Reference Section
3.6.7 Battery Status
A CPLD on the IQ80333 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