ST STM32F405 Reference Manual page 191

RM0090
Bit 9 GPIOJLPEN: IO port J clock enable during Sleep mode
Bit 8 GPIOILPEN: IO port I clock enable during Sleep mode
Bit 7
Bits 6 GPIOGLPEN: IO port G clock enable during Sleep mode
Bit 5 GPIOFLPEN: IO port F clock enable during Sleep mode
Bit 4 GPIOELPEN: IO port E clock enable during Sleep mode
Bit 3 GPIODLPEN: IO port D clock enable during Sleep mode
Bit 2 GPIOCLPEN: IO port C clock enable during Sleep mode
Bit 1 GPIOBLPEN: IO port B clock enable during Sleep mode
Bit 0 GPIOALPEN: IO port A clock enable during sleep mode
Reset and clock control for STM32F42xxx and STM32F43xxx (RCC)
This bit is set and cleared by software.
0: IO port J clock disabled during Sleep mode
1: IO port J clock enabled during Sleep mode
This bit is set and cleared by software.
0: IO port I clock disabled during Sleep mode
1: IO port I clock enabled during Sleep mode
GPIOHLPEN: IO port H clock enable during Sleep mode
This bit is set and cleared by software.
0: IO port H clock disabled during Sleep mode
1: IO port H clock enabled during Sleep mode
This bit is set and cleared by software.
0: IO port G clock disabled during Sleep mode
1: IO port G clock enabled during Sleep mode
This bit is set and cleared by software.
0: IO port F clock disabled during Sleep mode
1: IO port F clock enabled during Sleep mode
Set and cleared by software.
0: IO port E clock disabled during Sleep mode
1: IO port E clock enabled during Sleep mode
This bit is set and cleared by software.
0: IO port D clock disabled during Sleep mode
1: IO port D clock enabled during Sleep mode
This bit is set and cleared by software.
0: IO port C clock disabled during Sleep mode
1: IO port C clock enabled during Sleep mode
This bit is set and cleared by software.
0: IO port B clock disabled during Sleep mode
1: IO port B clock enabled during Sleep mode
This bit is set and cleared by software.
0: IO port A clock disabled during Sleep mode
1: IO port A clock enabled during Sleep mode
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