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stm32/f2/pwr.h: Document reserved bits.

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This commit is contained in:
Uwe Hermann 2011-11-11 21:43:03 +01:00
parent db3c0870bb
commit b05eff8dbf
1 changed files with 8 additions and 2 deletions
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10
include/libopencm3/stm32/f2/pwr.h
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@ -23,18 +23,24 @@
#include <libopencm3/stm32/pwr.h> #include <libopencm3/stm32/pwr.h>
/* /*
* This file extends the version in stm_common with definitions only * This file extends the common STM32 version with definitions only
* applicable to the STM32F2 series of devices. * applicable to the STM32F2 series of devices.
*/ */
/* --- PWR_CR values ------------------------------------------------------- */ /* --- PWR_CR values ------------------------------------------------------- */
/* FPDS: Flash power down in stop mode, only available in F2 family devices. */ /* Bits [31:10]: Reserved, always read as 0. */
/* FPDS: Flash power down in stop mode */
#define PWR_CR_FPDS (1 << 9) #define PWR_CR_FPDS (1 << 9)
/* --- PWR_CSR values ------------------------------------------------------ */ /* --- PWR_CSR values ------------------------------------------------------ */
/* Bits [31:10]: Reserved, always read as 0. */
/* BRE: Backup regulator enable */ /* BRE: Backup regulator enable */
#define PWR_CSR_BRE (1 << 9) #define PWR_CSR_BRE (1 << 9)
/* Bits [7:4]: Reserved, always read as 0. */
#endif #endif