Hello,
The LPOFF mode is intended to place the system in a fully OFF state with no system supplies active. The logic circuitry is supplied internally allowing proper wake up from any of the available wake-up mechanisms, with the minimum current consumption possible.
To enter LPOFF mode, some conditions and commands are required. You can send a SPI request to go to LPOFF mode from INIT_FS state or Normal mode. Two commands must be sent, the second command
(transition to LPOFF mode) must be sent within 10ms after the first command (transition to Pre-LPOFF mode) is sent. Passed the 10ms, the FS26 will go to the INIT_FS state.
Write the below commands to FS_LP_REQ register:
1. FS_LP_REQ[7:0] = A5h ➙ Transition to Pre-LPOFF mode
2. FS_LP_REQ[7:0] = 5Ah ➙ Transition to LPOFF mode
Before sending the request, you must select a way to wake-up from low power or else, the FS26 will be
stuck until a power-on reset event. The wake up signals must be enabled through the M_WIO_CFG register:
The picture below illustrates the transition to the LPOFF mode.
BR, Tomas
Hello,
The LPOFF mode is intended to place the system in a fully OFF state with no system supplies active. The logic circuitry is supplied internally allowing proper wake up from any of the available wake-up mechanisms, with the minimum current consumption possible.
To enter LPOFF mode, some conditions and commands are required. You can send a SPI request to go to LPOFF mode from INIT_FS state or Normal mode. Two commands must be sent, the second command
(transition to LPOFF mode) must be sent within 10ms after the first command (transition to Pre-LPOFF mode) is sent. Passed the 10ms, the FS26 will go to the INIT_FS state.
Write the below commands to FS_LP_REQ register:
1. FS_LP_REQ[7:0] = A5h ➙ Transition to Pre-LPOFF mode
2. FS_LP_REQ[7:0] = 5Ah ➙ Transition to LPOFF mode
Before sending the request, you must select a way to wake-up from low power or else, the FS26 will be
stuck until a power-on reset event. The wake up signals must be enabled through the M_WIO_CFG register:
The picture below illustrates the transition to the LPOFF mode.
BR, Tomas