SPRUJ28E November 2021 – September 2024 AM68 , AM68A , TDA4AL-Q1 , TDA4VE-Q1 , TDA4VL-Q1
Data lanes control uses a simple FSM to sequence entry and exit of Ultra Low Power mode. This FSM observes inputs from the control registers and based on these inputs it generates PPI outputs for ULP mode.
Table 12-406 shows the state descriptions.
State (ulps_data_fsm_st_r) | Description |
---|---|
DATA_LN_IDLE | Idle state. In this state HS transmission can be issued if the Clock Lane is in HS mode. |
DATA_LN_ULPS_REQ | Request to enter ULP state. Waiting for activation ULP confirmed by the ppi_ulps_active_not_dl input. |
DATA_LN_ULPS_ACTIVE | ULPS for Data Lanes is active. Waiting for the ulps_req_sync signal being low to exit ULPS. |
DATA_LN_ULPS_EXIT | ULPS exiting, waiting for the time defined in the CSI_TX_IF_DPHY_ULPS_WAKEUP register. |