as8510 austriamicrosystems, as8510 Datasheet - Page 20

• Manufacturer Part Number: as8510
• Description: Data Acquisition Device For Battery Sensors
• Manufacturer: austriamicrosystems

AS8510
Datasheet - D e t a i l e d D e s c r i p t i o n
Figure 5. Normal Mode 1
7.4.2 Normal Mode 2 (NOM2)
NOM2 differs from NOM1 in such a way that it allows for a relaxed data rate at a period of T
long as the amplitude of current is less than a programmed threshold I
threshold, the data rate is changed to the rate of NOM1 mode.
Transition to NOM2 occurs when the “START BIT” D0 of Mode Control register MOD_CTL_REG in
01 through SPI. In this mode the data rate should be programmed with the time of T
secs with a pulse width of eight cycles of lp_clk. The data is stable up to the next interrupt. The data sample is compared against the
programmed threshold and when it is exceeded, the data sampling rate is changed to provide data at the data rate of NOM1 mode. However, as
soon as the data sample amplitude falls below the programmed threshold, the sampling rate is restored to provide data at the rate of T
functionality is illustrated in the waveform
Figure 6. Normal Mode 2
www.austriamicrosystems.com/AS8510
I
I
THS
DD
INT at f1 rate from
INT
Current Channel
Voltage Channel
current channel
DATA Register
DATA Register
Sampling with f
V,T
I
DATA
DATA
T
MC
Sampling with f1
Sampling with f2
STOP
Interrupt from the current channel is at f1 rate which is integer multiple of f2 rate from voltage channel
V,I,T
T INT
Figure
T
MC
START
6.
V,I,T
Revision 3.4
THC
. However, when, the measured input signal exceeds the programmed
I
MC
. An interrupt signal is generated on INT at the rate of T
I > I
THS
MC
V,I,T
by programming the corresponding register as
I
V,T
Table 33
I < I
is set to 1 and mode control bits to
THS
V,I,T
V,I,T
MC
t
t
T
INT
20 - 46
. The
t
MC