From b05eff8dbff13a89d122be57aa53eff9fd9ce515 Mon Sep 17 00:00:00 2001 From: Uwe Hermann Date: Fri, 11 Nov 2011 21:43:03 +0100 Subject: stm32/f2/pwr.h: Document reserved bits. --- include/libopencm3/stm32/f2/pwr.h | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/libopencm3/stm32/f2/pwr.h b/include/libopencm3/stm32/f2/pwr.h index 7cf8dab..2ff1d34 100644 --- a/include/libopencm3/stm32/f2/pwr.h +++ b/include/libopencm3/stm32/f2/pwr.h @@ -23,18 +23,24 @@ #include /* - * 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. */ /* --- 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) /* --- PWR_CSR values ------------------------------------------------------ */ +/* Bits [31:10]: Reserved, always read as 0. */ + /* BRE: Backup regulator enable */ #define PWR_CSR_BRE (1 << 9) +/* Bits [7:4]: Reserved, always read as 0. */ + #endif -- cgit v1.2.3