IRMCF311_15 Datasheet, PDF (27/36 Pages) International Rectifier – Dual Channel Sensorless Motor Control IC

7.11 CAPTURE Input AC Timing
P1.4/CAP
TCAPCLK
tCAPHIGH
tCAPLOW
tCRDELAY
CREV(H,L)
Internal
register
CLAST(H,L)
Internal
register
Interrupt
Vector Fetch
tCLDELAY
tINTDELAY
Interrupt
Unless specified, Ta = 25˚C.
Symbol
Parameter
Min
Typ
Max
T_CAPCLK
CAPTURE input
period
8
-
-
t_CAPHIGH
CAPTURE input high
4
-
-
time
t_CAPLOW
CAPTURE input low
4
-
-
time
t_CRDELAY CAPTURE falling edge
-
-
4
to capture register latch
time
t_CLDELAY
CAPTURE rising edge
-
-
4
to capture register latch
time
t_INTDELAY CAPTURE input
-
-
4
interrupt latency time
Table 20. CAPTURE AC Timing
IRMCF311
Unit
SYSCLK
SYSCLK
SYSCLK
SYSCLK
SYSCLK
SYSCLK
27