NXP Semiconductors
UM11723
KITPF5200FRDMEVM evaluation board
There are two different tbb-mode procedures, depending on whether or not the OTP
fuses have already been burned.
Working with a part whose OTP fuses have not yet been burned:
1. Before performing a read or write, be sure you are in tbb-mode. To do so, select
tbb-
mode
in the Device Manager menu and click
Apply
.
This works even if you initially started running in user-mode.
2. The usual way of working is to set the PWRON_SEL jumper on the PWRON_MCU
side in order to allow the PWRON pin to be controlled by the MCU and the script.
Working with a part whose OTP fuses have already been burned:
Under these circumstances, a write operation is possible only when the board has first
been powered with PWRON set to low. Then the user can read, modify, and when ready,
set PWRON to high.
The usual way of working is to set the PWRON_SEL jumper on the PWRON_SW side in
order to allow PWRON to be controlled manually by the SW1 switch.
The procedure is as follows:
1. Set the PWRON_SEL jumper to the PWRON_SW position.
2. Move POWERON SW (SW1) to the OFF (0) position.
3. Power the board.
UM11723
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2021. All rights reserved.
User manual
Rev. 1 — 8 December 2021
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