RM0453 Rev 2 349/1454
RM0453 Reset and clock control (RCC)
363
7.4.41 RCC CPU2 AHB2 peripheral clock enable in Sleep mode register
(RCC_C2AHB2SMENR)
Address offset: 0x16C
Reset value: 0x0000 0087
Access: no wait state, word, half-word and byte access
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res.
1514131211109876543210
Res. Res. Res. Res. Res. Res. Res. Res.
GPIOH
SMEN
Res. Res. Res. Res.
GPIOC
SMEN
GPIOB
SMEN
GPIOA
SMEN
rw rw rw rw
Bits 31:8 Reserved, must be kept at reset value.
Bit 7 GPIOHSMEN: IO port H clock enable during CPU2CSleep and CStop modes
This bit is set and cleared by software.
0: IO port H clock disabled by the clock gating during CPU2 CSleep and CStop modes.
1: IO port H clock enabled by the clock gating during CPU2 CSleep mode, disabled during
CPU2 CStop mode
Bits 6:3 Reserved, must be kept at reset value.
Bit 2 GPIOCSMEN: IO port C clock enable during CPU2 CSleep and CStop modes
This bit is set and cleared by software.
0: IO port C clock disabled by the clock gating during CPU2 CSleep and CStop modes.
1: IO port C clock enabled by the clock gating during CPU2 CSleep mode, disabled during
CPU2 CStop mode
Bit 1 GPIOBSMEN: IO port B clock enable during CPU2 CSleep and CStop modes
This bit is set and cleared by software.
0: IO port B clock disabled by the clock gating during CPU2 CSleep and CStop modes.
1: IO port B clock enabled by the clock gating during CPU2 CSleep mode, disabled during
CPU2 CStop mode
Bit 0 GPIOASMEN: IO port A clock enable during CPU2 CSleep and CStop modes
This bit is set and cleared by software.
0: IO port A clock disabled by the clock gating during CPU2 CSleep and CStop modes.
1: IO port A clock enabled by the clock gating during CPU2 CSleep mode, disabled during
CPU2 CStop mode
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