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stm32/f4/pwr.h: Document reserved bits.

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This commit is contained in:
Uwe Hermann 2011-11-11 21:44:11 +01:00
parent b05eff8dbf
commit b874da24f2
1 changed files with 15 additions and 4 deletions
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19
include/libopencm3/stm32/f4/pwr.h
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@ -23,33 +23,44 @@
#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 STM32F4 series of devices. * applicable to the STM32F4 series of devices.
*/ */
/* --- PWR_CR values ------------------------------------------------------- */ /* --- PWR_CR values ------------------------------------------------------- */
/* Bits [31:15]: Reserved */
/* VOS: Regulator voltage scaling output selection */ /* VOS: Regulator voltage scaling output selection */
#define PWR_CR_VOS (1 << 14) #define PWR_CR_VOS (1 << 14)
/* FPDS: Flash power down in stop mode, only available in F2 family devices. */ /* Bits [13:10]: Reserved */
/* 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 ------------------------------------------------------ */
/* VOSRDY: Regulator voltage scaling output selection ready */ /* Bits [31:15]: Reserved */
/* VOSRDY: Regulator voltage scaling output selection ready bit */
#define PWR_CSR_VOSRDY (1 << 14) #define PWR_CSR_VOSRDY (1 << 14)
/* Bits [13:10]: Reserved */
/* BRE: Backup regulator enable */ /* BRE: Backup regulator enable */
#define PWR_CSR_BRE (1 << 9) #define PWR_CSR_BRE (1 << 9)
/* Bits [7:4]: Reserved */
/* BRR: Backup regulator ready */ /* BRR: Backup regulator ready */
#define PWR_CSR_BRR (1 << 3) #define PWR_CSR_BRR (1 << 3)
/* --- Function prototypes ------------------------------------------------- */ /* --- Function prototypes ------------------------------------------------- */
typedef enum { typedef enum {
SCALE1, SCALE2 SCALE1,
SCALE2,
} vos_scale_t; } vos_scale_t;
void pwr_set_vos_scale(vos_scale_t scale); void pwr_set_vos_scale(vos_scale_t scale);