SPRUHZ7K August 2015 – April 2024 AM5706 , AM5708 , AM5716 , AM5718 , AM5718-HIREL
Table 15-349 describes the power-management features available to the ELM.
| Feature | Registers | Description |
|---|---|---|
| Clock autogating | ELM_SYSCONFIG[0] AUTOGATING | This bit allows a local power optimization inside the module by gating the ELM_FCLK clock upon the interface activity. |
| Slave idle modes | ELM_SYSCONFIG[4:3] SIDLEMODE | Force-idle, no-idle, and smart-idle modes are available. |
| Clock activity | ELM_SYSCONFIG[8] CLOCKACTIVITY | The clock can be switched off or maintained during the wake-up period. |
| Master standby modes | N/A | |
| Global wake-up enable | N/A | |
| Wake-up sources enable | N/A |
The PRCM module has no hardware means of reading CLOCKACTIVITY settings. Thus, software must ensure consistent programming between the ELM CLOCKACTIVITY and ELM clock PRCM control bits. For a description of the ClockActivity feature, see Power, Reset, and Clock Management.