IC-TW28 Datasheet, PDF (61/80 Pages) IC-Haus GmbH – 10-BIT SIN/COS INTERPOLATOR

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The status and fault logic of the iC-TW28 in pin configu-
ration mode is shown in Figure 35.
Rev D2, Page 61/80
STAT_VAL
Read-only Status
STAT_SEL
0x00
STAT_IE 0 0 1 1 0 1 0 0
Interrupt Source Select
Interrupt
Enable
xIRQ
STAT_FATAL 0 0 0 0 0
ABZ Output Disable (Hi-Z)
Figure 35: iC-TW28 Pin Configuration Mode Status and Fault Logic
In pin configuration mode, xIRQ is typically used to drive
a fault LED. STAT_SEL = 0x00, selecting the STAT_VAL
register as the fault source for all conditions. Faults are
enabled for scamp, lagfatl, and laglim; any fatal condi-
tion also activates xIRQ.
Thus, the fault LED is activated only when the input
amplitude is out of bounds or there is a fatal condition.
For STAT_HIZ = 0x00 only a fatal condition disables the
ABZ outputs.