Id Codes And Locking Mechanism; Mcu Device Id Code - ST STM32F101 series Reference Manual

RM0008
31.6

ID codes and locking mechanism

There are several ID codes inside the STM32F10xxx MCUs. ST strongly recommends tools
designers to lock their debuggers using the MCU DEVICE ID code located in the external
PPB memory map at address 0xE0042000.
31.6.1

MCU device ID code

The STM32F10xxx MCUs integrate an MCU ID code. This ID identifies the ST MCU part-
number and the die revision. It is part of the DBG_MCU component and is mapped on the
external PPB bus (see
JTAG debug port (4 to 5 pins) or the SW debug port (two pins) or by the user software. It is
even accessible while the MCU is under system reset.
DBGMCU_IDCODE
Address: 0xE004 2000
Only 32-bits access supported. Read-only.
31 30 29 28
r r r
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Reserved
Section 31.16 on page
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DocID13902 Rev 15
1090). This code is accessible using the
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REV_ID
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DEV_ID
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Debug support (DBG)
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r
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