
CN2 motor
‑
control connector
STM32U575AII6Q microcontroller
Terminal
Terminal name
Port name
Function
Alternate
function
Board modification for
enabling motor control
20
PhaseC current-
-
GND
-
-
21
ICL Shutout
PG9
GPIO
-
Close SB107
Open SB108 STMod+ or
no daughterboard
22
GND
-
GND
-
-
23
Dissipative Brake
PB2
GPIO
-
Close SB45
Remove R148 (Octo
‑
SPI)
24
PFC ind. curr.
PC3
ADC1_IN4
-
Close SB69
Remove R164 (Octo
‑
SPI)
25
5V
-
5 V
-
-
26
MC Temp.
PA3
ADC1_IN8
-
Close SB51
Removed R150
(Octo
‑
SPI)
Open SB53 OpAmp
27
PFC Sync
PF9
TIM15_CH1
TIM15_CH1
Close SB59
Open SB62 Audio SAI
28
3V3
-
3.3 V
-
-
29
PFC PWM
PF10
TIM15_CH2
-
Close SB58
Open SB55 MDF1_CCK1
30
PFC Shutdown
PB12
TIM15_BKIN
-
Close SB44
Open SB42 SmartCard
Open SB47 (Octo
‑
SPI)
31
Encoder A
PA0
TIM2_CH1
ADC12_IN5
Close SB65
Open SB68 OpAmp
Open SB79 STMod+
Open SB72 UCPD
32
PFC Vac
PA6
ADC1_IN11
-
Close SB57
Remove R158 (Octo
‑
SPI)
33
Encoder B
PA1
TIM2_CH2
ADC12_IN6
Close SB67
Open SB78 TAMPER
KEY
Open SB71 STMod+
34
Encoder Index
PA2
TIM2_CH3
ADC12_IN7
Close SB48
Removed R151
(Octo
‑
SPI)
STM32U575I-EV
Motor control
UM2854
-
Rev 1
page 84/105