IC-TW28 Datasheet, PDF (46/80 Pages) IC-Haus GmbH – 10-BIT SIN/COS INTERPOLATOR

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Rev D2, Page 46/80
STAT_CFG
STAT_CFG is a static register used to configure the
status/fault monitoring features of the iC-TW28.
STAT_CFG.filter determines how long a status condi-
tion must persist before the corresponding bit in the
STAT_VAL register is set.
STAT_CFG.enz does not affect the Zero Capture Oc-
curred (zc) or Zero Capture Lost (zcl) bits in the SPI
Status Byte. See Position Capture on page 69 for more
information.
Value
0
1
2
3
4
5–7
STAT_CFG.filter (0x0400 Bits 2:0)
Description
0 (none)
10 µs
150 µs
2.5 ms
40 ms
Reserved (do not use)
Table 79: Status Event Filtering
STAT_CFG.long determines how long xIRQ is active
when a configured status condition or fault occurs.
Value
0
1
STAT_CFG.long (0x0400 Bit 3)
Description
xIRQ active for duration of condition
xIRQ prolonged by 40 ms
Table 80: Interrupt Extension
Prolonging xIRQ is useful when it is used to drive a fault
LED to ensure that transient conditions are visible.
STAT_CFG.enc determines whether or not an overflow
of the multi-cycle counter activates xIRQ.
Value
0
1
STAT_CFG.enc (0x0400 Bit 4)
Description
No interrupt on counter overflow
Interrupt on multi-cycle counter overflow
Table 81: Interrupt Enable for Counter Overflow
STAT_CFG.enc does not affect the Multi-Cycle Counter
Rollover Occurred (mcr) or Multi-Cycle Counter
Rollover Lost (mcrl) bits in the SPI Status Byte. See
Multi-Cycle Counter on page 67 for more information.
STAT_CFG.enz determines whether or not a position
capture event (as configured in ZERO0.mode) activates
xIRQ.
Value
0
1
STAT_CFG.enz (0x0400 Bit 5)
Description
No interrupt on position capture
Interrupt on position capture
Table 82: Interrupt Enable for Position Capture