ZSSC1856 Datasheet, PDF (69/179 Pages) List of Unclassifed Manufacturers – Intelligent Battery Sensor IC

ZSSC1856
Intelligent Battery Sensor IC
3.8.3.7 Register “adcCrcl” – Current Result Count Limit
Table 3.37 Register adcCrcl
Name
adcCrcl[7:0]
adcCrcl[15:8]
Address Bits Default Access Description
0x40 [7:0] 0
RW Number of current measurements before the
0x41 [7:0] 0
RW current conversion ready strobe is generated.
Note: Setting this bit to 0 disables this
functionality, and the strobe is generated after
each current measurement.
3.8.3.8 Register “adcCrcv” – Current Result Count Value
Table 3.38 Register adcCrcv
Name
adcCrcv[7:0]
adcCrcv[15:8]
Address Bits Default Access Description
0x1B [7:0] 0
RO Present value of the current result counter.
0x1C [7:0] 0
RO
3.8.3.9 Register “adcVrcl” – Voltage Result Count Limit
Table 3.39 Register adcVrcl
Name
adcVrcl
Address Bits Default Access Description
[3:0] 0
RW Number of voltage measurements before the
voltage conversion ready strobe is generated.
Unused
0x45
[7:4] 0
Note: Setting this bit to 0 disables this
functionality, and the strobe is generated after
each voltage measurement.
RO Unused; always write as 0.
3.8.3.10 Register “adcVrcv” – Voltage Result Count Value
Table 3.40 Register adcVrcv
Name
adcVrcv
Unused
Address Bits Default Access Description
0x1E
[3:0]
[7:4]
0
0
RO Present value of the voltage result counter.
RO Unused; always write as 0.
3.8.3.11 Current Threshold Comparator Functionality
The current threshold comparator functionality is used to monitor the current level and to generate an interrupt
(irqStat[8]) if the absolute current value exceeds a programmable limit for a configurable number of
conversion results. This functionality is enabled when the field ctcvMode in register adcAcmp is set to a non-zero
value. If enabled, this function is always triggered when a new current value is measured. The absolute value of
the most significant 17 bits of the measured current value is compared to the expanded programmable threshold
register adcCrth:
absadcCdat23: 7  0,adcCrth
(13)
When the current threshold comparator functionality is enabled, the current threshold counter is used to count the
number of conversions where the absolute current value is above the threshold. If the absolute current value is
greater than or equal to the programmed threshold (above formula is true), the internal current threshold counter
is incremented (until it reaches its maximum value 0xFF). Otherwise the counter is either decremented
Data Sheet
April 24, 2012
© 2012 Zentrum Mikroelektronik Dresden AG — Rev.1.00
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the
prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.
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