Documentation conventions RM0008
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1 Documentation conventions
1.1 List of abbreviations for registers
The following abbreviations are used in register descriptions:
1.2 Glossary
● Low-density devices are STM32F101xx, STM32F102xx and STM32F103xx
microcontrollers where the Flash memory density ranges between 16 and 32 Kbytes.
● Medium-density devices are STM32F101xx, STM32F102xx and STM32F103xx
microcontrollers where the Flash memory density ranges between 64 and 128 Kbytes.
● High-density devices are STM32F101xx and STM32F103xx microcontrollers where
the Flash memory density ranges between 256 and 512 Kbytes.
1.3 Peripheral availability
For peripheral availability and number across all STM32F10xxx sales types, please refer to
the low-, medium- and high-density STM32F101xx and STM32F103xx datasheets, and to
the low- and medium-density STM32F102xx datasheets.
read/write (rw) Software can read and write to these bits.
read-only (r) Software can only read these bits.
write-only (w) Software can only write to this bit. Reading the bit returns the reset
value.
read/clear (rc_w1) Software can read as well as clear this bit by writing 1. Writing ‘0’ has
no effect on the bit value.
read/clear (rc_w0) Software can read as well as clear this bit by writing 0. Writing ‘1’ has
no effect on the bit value.
read/set (rs) Software can read as well as set this bit. Writing ‘0’ has no effect on the
bit value.
toggle (t) The software can only toggle this bit by writing ‘1’. Writing ‘0’ has no
effect.
Reserved (Res.) Reserved bit, must be kept at reset value.
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