ST SPC560D-DIS - Boot Configuration; ADC Input; Daughter Board Connector and I;O Headers; Figure 13. Potentiometers (Schematic & PCB)

UM1681 Rev 3 15/23
UM1681 Hardware overview
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2.6.4 Boot configuration
It is possible to reprogram microcontroller internal flash programming using Boot Assist
Mode (BAM) via SCI. The pins PA8 and PA9, (see Figure 12: User I/O pins PC4, PA8 and
PA9) have to be configured to enable the BAM functionality as following:
 FABM (PA9) has to be connected to VDD_HV to enable serial boot (J13 jumper
closed).
 ABS (PA8) has to be physically grounded to flash via SCI (J12 jumper closed).
If the BAM function is not used, these pins can be configured as normal I/O according to the
functions reported in the datasheet (see Section Appendix B: Reference documents).
2.6.5 ADC input
A trimmer connected to the microcontroller PB8 input allows the user to check ADC. The
analog input voltage range is 0 V ÷ +V
DD_HV
.
Figure 13. Potentiometers (Schematic & PCB)
2.7 Daughter board connector and I/O headers
The I/O microcontroller pins are connected to a double 2x36 pin array (connectors X1-X2
and X3-X4).
GAPGRI00394
Table 4. I/O headers
Pin number X1 X2 X3 X4
1 GND GND VBAT VBAT
2 PE[2] PE[3] GND GND
3PC[5]PC[4]TCKTDI
4 PE[4] PE[5] TDO TMS
5 PH[4] PH[5] PA[6] PA[5]
6 PH[6] PH[7] PC[2] PC[3]
7 PH[8] PE[6] PG[11] PG[10]
8 PE[7] PC[12] PE[15] PE[14]
9 PC[13] PB[1] PG[15] PG[14]
10 PB[2] PB[3] PE[12] PA[11]