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BLUENRG-2 Datasheet(PDF) 20 Page - STMicroelectronics |
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BLUENRG-2 Datasheet(HTML) 20 Page - STMicroelectronics |
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20 / 190 page ![]() Functional details BlueNRG-2 20/190 DocID030675 Rev 2 Table 5: SYSTEM_CTRL - WKP_IO_IS register description: address offset SYSTEM_CTRL_BASE_ADDR+0x00 Bit Field name Reset RW Description 4:0 LEVEL_SEL 0x00 RW Selects the active wake up level for the five IOs.0: The system wakes up when IO is low. 1: The system wakes up when IO is high. One bit by IO: Bit0: IO9 Bit1: IO10 Bit2: IO11 Bit3: IO12 Bit4: IO13 31:5 RESERVED 0x00 R RESERVED Table 6: SYSTEM_CTRL - WKP_IO_IE register description: address offset SYSTEM_CTRL_BASE_ADDR+0x04 Bit Field name Reset RW Description 4:0 IO_WAKEUP_EN 0x07 RW Enables the IOs to be wake up source. 0: Wake up on the IO disabled. 1: Wake up on the IO enabled. One bit by IO: Bit0: IO9 Bit1: IO10 Bit2: IO11 Bit3: IO12 Bit4: IO13 31:5 RESERVED 0x00 R RESERVED Table 7: SYSTEM_CTRL - CTRL register description: address offset SYSTEM_CTRL_BASE_ADDR+0x08 Bit Field name Reset RW Description 0 MHZ32_SEL 0x0 RW Indicates the crystal frequency used in the application. 0: The 16 MHz is selected. 1: The 32 MHz is selected. 31:1 RESERVED 0x0 R RESERVED Table 8: SYSTEM_CTRL - SLEEPIO_OEN register description: address offset SYSTEM_CTRL_BASE_ADDR+0x0C Bit Field name Reset RW Description 4:0 SLEEPIO_OEN 0x07 RW Enables the IOs to act as output during low power modes. 0: output mode disabled. 1: output mode enabled. One bit by IO: - Bit0: IO9 - Bit1: IO10 - Bit2: IO11 31:5 RESERVED 0x00 R RESERVED |
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