st7pmc2s6 STMicroelectronics, st7pmc2s6 Datasheet - Page 343

• Manufacturer Part Number: st7pmc2s6
• Description: 8-bit Mcu For Automotive With Nested Interrupts, Flash, 10-bit Adc, Brushless Motor Control, 5 Timers, Spi, Linsci?
• Manufacturer: STMicroelectronics

ST7MC1K2-Auto, ST7MC1K6-Auto, ST7MC2S4-Auto, ST7MC2S6-Auto
Figure 155. Example 5: Waveforms for sensor HST update timing diagram for a newly
f
f
MCIx
Comparator
output
sample
write IS[1:0] = 01
IS[1:0] (MPHST)
HST (MCRC)
mtc
SCF
= 2 x f
selected phase input
Sampling of sensor input is done at f
for input selection, you have to wait:
1) 1/f
2) 100ns corresponding to the comparator and multiplexer propagation delay (d)
3) 1/f
4) 1/f
CPU
mtc
SCF
mtc
to resynchronize the data and set the MCIx bit
to resynchronize the data and set the HST bit
to sample the comparator output
Secure waiting
time to read
HST
SCF[1:0]
f
SCF
XX
Example with f
d
1 MHz 500 kHz 250 kHz 125 kHz
00
2µs
SCF
PERIPH
, so after writing IS[1:0] in the MPHST register
3µs
01
= f
mtc
= 4 MHz:
5µs
10
9µs
11
01
Electrical characteristics
Sampling time
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