Psoc™ 6 Wi-Fi Bluetooth® Pioneer Board Reworks; Psoc™ 6 Wi-Fi Bluetooth® Pioneer Kit Guide; Bypass Protection Circuit On Program And Debug Header (J11) - Infineon CY8CKIT-062-WIFI-BT Manual

PSoC™ 6 Wi-Fi Bluetooth® Pioneer Kit guide
CY8CKIT-062-WIFI-BT
Hardware
3.3 PSoC™ 6 Wi-Fi Bluetooth
3.3.1

Bypass protection circuit on program and debug header (J11)

The 10-pin header allows you to program and debug the PSoC™ 6 MCU using an external programmer such as
MiniProg4. This header has a protection circuit that cuts-off any voltage greater that 3.4 V on VTARG_REF pin. This
is to ensure that the PSoC™ 6 MCU and other 3.3-V devices do not get damaged due to overvoltage.
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Figure 34 Schematics of bypass protection circuit on program and debug header (J11)
If the external programmer provides a slightly higher voltage, say 3.42 V, and you still need to use the
programmer, you can bypass this protection circuit by populating the bypass zero-ohm resistor R196.
Note that this change will compromise the protection circuit when an external supply is used and will
permanently damage any 3.3-V device if the external voltage exceeds absolute maximum limit of the device. See
the respective device datasheet for absolute maximum voltage limits.
PSoC™ 6 Wi-Fi Bluetooth
Figure 35
User guide
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2023-12-18