System Clock Configuration; Reset Circuit; Table 3. Clock Configuration Jumpers; Table 4. Reset Configuration Jumpers - STMicroelectronics SPC58NHADPT302S User Manual

5.3

System clock configuration

The mini module supports the usage of crystal clock sources as well as external clock source:
Jumper Description
XTAL32 configuration
J20
• Close: connect pin 2 of 32.768 KHz
crystal (Y2) to XTAL32
EXTAL32 configuration
J21
• Close: Connect pin 1 of 32.768 KHz
crystal (Y2) to EXTAL32
EXTAL configuration
• 1-2 Connect pin 2 of 40 MHz crystal
J17
(Y1) to EXTAL
• 2-3 Connect EVB-EXTAL to EXTAL
XTAL configuration
• 1-2 Connect pin 1 of 40 MHz crystal
J19
(Y1) to XTAL
• 2-3 Connect XTAL to GND
Enable 8 MHz oscillator power supply
J18 • Open – Power off
• Closed – Power on
External 8 MHz clock source
• 1-2 OSC-MOD (from oscillator)
J22
• 2-3 EXTAL-SMA (from SMA
connector)
5.4

Reset circuit

The mini module supports different ways to reset the microcontroller. To use and perform the reset driving there
are different jumpers and switches:
Jumper Description
SW1 Reset push button
Connect the external reset to the reset
J24
driver for ESR0 and PORST pins
J23 Connect the external reset to ESR0 pin
J25 Connect the external reset to PORST pin
UM2725 - Rev 1
Table 3. Clock configuration jumpers
Default
Open
Open
1-2
(Y1 pin2 to EXTAL)
1-2
(Y1 pin1 to XTAL)
Open
(Power off)
1-2
(8 MHz from oscillator)
Table 4. Reset configuration jumpers
Default
Open
Close
Close
Close
System clock configuration
Position
Figure 8. Overview of SPC58NHADPT302S Rev. A
mini module - Top
Figure 8. Overview of SPC58NHADPT302S Rev. A
mini module - Top
Figure 8. Overview of SPC58NHADPT302S Rev. A
mini module - Top
Figure 8. Overview of SPC58NHADPT302S Rev. A
mini module - Top
Figure 8. Overview of SPC58NHADPT302S Rev. A
mini module - Top
Figure 8. Overview of SPC58NHADPT302S Rev. A
mini module - Top
Position
Figure 8. Overview of SPC58NHADPT302S Rev. A
mini module - Top
Figure 8. Overview of SPC58NHADPT302S Rev. A
mini module - Top
Figure 8. Overview of SPC58NHADPT302S Rev. A
mini module - Top
Figure 8. Overview of SPC58NHADPT302S Rev. A
mini module - Top
UM2725
- C3
- C3
- C2
- C2
- C1
- C2
- A4
- A4
- A4
- A4
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