SH3100IMTR SEMTECH [Semtech Corporation], SH3100IMTR Datasheet - Page 26

• Manufacturer Part Number: SH3100IMTR
• Description: Supervisory IC with I2C Interface and PWM
• Manufacturer: SEMTECH [Semtech Corporation]

© 2006 Semtech Corp.
POWER MANAGEMENT
Register Descriptions
Register Name InterruptStatus
Register Name ADCResult
Address(hex): 15
Address(hex): 16
Bit No.
Bit No.
Bit 7
Bit 7
[7:0]
[5]
[4]
[2]
[1]
[0]
Description
SNSE Fault interrupt
ADC conversion complete
indicator interrupt
RTC alarm interrupt
Comparator trigger interrupt
PIT interrupt
Description
ADC Result
Bit 6
Bit 6
(continued)
SNSE Fault
Bit Value
00 (hex)
Bit 5
Bit 5
Description
Description
Value Description
Result of 8-bit successive approximation analog to digital conversion
ADC Done
Bit Value
ADC Conversion Result
Bit 4
Bit 4
0
1
0
1
0
1
0
1
0
1
26
(R/W) Indicates status of all
interrupt sources, and may be
used to selectively clear any
number of these.
Value Description
No SNSE faults detected
In fan control mode, AND the fan is currently active, i.e. the
PWM duty cycle is non-zero, this indicates that no SNSE pulse
were detected within the last 32768 CLK1 cycles (1 second if
CLK1 is set for 32.768 kHz), irrespective of whether CLK1
output is enabled or not
In other device modes, this indicates that no activity has been
detected on the general-purpose comparator for the last 32768
CLK1 cycles, irrespective whether CLK1 is enabled
Write ‘1’ to this bit to clear the SNSE Fault interrupt
ADC conversion is not complete
ADC conversion is complete, and the result may be read in the
ADCResult register
Write ‘1’ to this bit to clear the ADCDone interrupt
RTC alarm has not triggered
RTC alarm has triggered
Write ‘1’ to this bit to clear the RTC alarm interrupt
Comparator interrupt has not triggered
If the CompIntPolarity bit in the Config register is set, then this
indicates that the comparator source has risen above the DAC
level. If the CompIntPolarity bit is clear, then this indicates that
the comparator source has fallen below the DAC level
Write ‘1’ to this bit to clear the RTC alarm interrupt
PIT has not expired
PIT has expired
Write ‘1’ to this bit to clear the RTC alarm interrupt
(R) ADC Conversion Result
Bit 3
Bit 3
RTC Alarm
Bit 2
Bit 2
Default Value: 0000 0000
Reset Event: P, W
Default Value: 1000 0000
Reset Event: P, W
Comparator
trigger
Bit 1
Bit 1
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PIT expired
Bit 0
Bit 0