ZSSC1856 Datasheet, PDF (45/179 Pages) List of Unclassifed Manufacturers – Intelligent Battery Sensor IC

ZSSC1856
Intelligent Battery Sensor IC
 Bit 6: Voltage Conversion Result Ready Interrupt; set by the ADC unit when a single voltage
measurement (register adcVrcl == 0) or multiple voltage measurements defined by the
adcVrcl (register adcVrcl != 0) have been completed and the result is available.
 Bit 7: Temperature Conversion Result Ready Interrupt; set by the ADC unit when a single
temperature measurement has been completed and the result is available.
 Bit 8: Current Comparator Interrupt; set by the ADC unit when the Current Threshold Counter Mode
is enabled (register adcAcmp[2:1] != 0) and the absolute value of multiple (defined by register
adcCtcl) current measurements exceeds the programmed (register adcCrth) current
threshold.
Note: If the threshold counter mode is enabled but adcCtcl is 0, this bit is always set
independently of the threshold.
 Bit 9: Voltage Comparator Interrupt; set by the ADC unit if the VThWuEna bit (adcAcmp[8]) is set to
1 and a single measured voltage or the accumulated voltage measurements (depends on
configured mode) drop below the programmed (register adcVTh) voltage threshold.
 Bit 10: Temperature Threshold Interrupt; set by the ADC unit when the TWuEna bit (adcAcmp[10]) is
set to 1 and a temperature measurement is outside the specified temperature interval defined by
registers adcTmin and adcTmax.
 Bit 11: Current Accumulator Threshold Interrupt; set by the ADC unit when the CAccuThEna bit
(adcAcmp[3]) is set to 1 and the accumulated current values rise above the programmed
(register adcCaccTh) threshold value for a positive threshold value or fall below the program-
med threshold value for the negative threshold value.
 Bit 12: Current Overflow Interrupt; set by the ADC unit when the COvrEna bit (adcAcmp[4]) is set to
1 and the compensated value of a current measurement is outside of the representable range.
 Bit 13: Voltage / Temperature Overflow Interrupt; set by the ADC unit when the VTOvrEna bit
(adcAcmp[5]) is set to 1 and the compensated value of a voltage or temperature measurement
is outside of the representable range.
 Bit 14: Current Over-Range Interrupt; set by the ADC unit when the COvrEna bit (adcAcmp[4]) is set
to 1 and the input from the current ADC is overdriven.
 Bit 15: Voltage / Temperature Over-Range Interrupt; set by the ADC unit when the VTOvrEna bit
(adcAcmp[5]) is set to 1 and the input from the voltage / temperature ADC is overdriven.
3.6.1.2 Register “irqStat” – Interrupt Status Register
Table 3.16 Register irqStat
Name
irqStat[7:0]
Address Bits Default Access Description
0x00 [7:0] 0
RC Lower byte of the interrupt status register; each bit
is set by hardware and cleared on read access.
irqStat[15:8]
0x01 [7:0] 0
RC Upper byte of interrupt status register; each bit is
set by hardware and cleared on read access.
Note: To avoid loss of information, the hardware set condition has a higher priority than the read clear condition.
Data Sheet
April 24, 2012
© 2012 Zentrum Mikroelektronik Dresden AG — Rev.1.00
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