hello everyone ,
How to wake wake up MFS2633 from LPOFF Mode?
Please give me some Detailed Process
Thanks!
Solved! Go to Solution.
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