Table 187. Vrefbuf Register Map And Reset Values - ST STM32G4 Series Reference Manual

Advanced arm-based 32-bit mcus

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VREFBUF calibration control register (VREFBUF_CCR)

Address offset: 0x04

Reset value: 0x0000 00XX

Bits 31:6 Reserved, must be kept at reset value.

Bits 5:0 TRIM[5:0]: Trimming code

VREFBUF register map

The following table gives the VREFBUF register map and the reset values.

Offset Register name

These bits are automatically initialized after reset with the trimming value stored in the Flash

memory during the production test. Writing into these bits allows to tune the internal

reference buffer voltage.

Table 187. VREFBUF register map and reset values

Section 2.2 on page 78

Voltage reference buffer (VREFBUF)

for the register boundary addresses.

RM0440 Rev 1

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