st7pmc2s6 STMicroelectronics, st7pmc2s6 Datasheet - Page 271

• 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
Table 136. MCRC register description (continued)
1. Typical values for V
Phase state register (MPHST)
1. Preload bits, new value taken into account at the next C event.
Table 137. MPHST register description
2:0 VR[2:0]
MPHST
7:6 IS[1:0]
Bit
Bit
4
3
7
Name
Name
SPLG
IS[1:0]
SC
R/W
(1)
Input selection bits
Simulated commutation event bit
Sampling Z event at high frequency in sensorless mode (SR = 0)
BEMF/demagnetization reference threshold
These bits mainly select the input to connect to the comparator:
00: channel selected = MCIA.
01: channel selected = MCIB.
10: channel selected = MCIC.
11: channel selected = Both MCIA and MCIB: encoder mode.
The fourth configuration (IS[1:0] = 11) specifies that an incremental encoder is used
(in this case MCIA and MCIB digital signals are directly connected to the
incremental encoder interface and the analog multiplexer is bypassed).
0: Hardware commutation event in auto-switched mode (SWA = 1 in MCRA
1: Simulated commutation event in auto-switched mode (SWA = 1 in MCRA
This bit enables sampling at high frequency in sensorless mode independently of
the PWM signal or only during ON time if the DS[3:0] bits in the MCONF register
contain a value. Refer to
0: Normal mode (Z sampling at PWM frequency at the end of the OFF time)
1: Z event sampled at f
Note: When the SPLG bit is set, there is no minimum OFF time programmed by the
OT [3:0] bits, the OFF time is forced to 0µs. This means that in current mode, the
OFF time of the PWM signal comes only from the current loop.
These bits select the V
111: V
110: 3.5V
101: 2.5V
100: 2V
011: 1.5V
010: 1V
001: 0.6V
000: 0.2V
The V
6
register)
register)
DD
= 5V
REF
REF
(1)
(1)
(1)
(1)
(1)
(1)
(1)
value is used for BEMF and demagnetization detection.
voltage threshold = threshold voltage set by external MCVREF pin
5
SCF
REF
Table 160: MCONF register description on page
4
(see
value as shown below:
Table
Function
Function
166)
3
OO[5:0]
R/W
(1)
2
Reset value: 0000 0000 (00h)
On-chip peripherals
1
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