Hello TI expert:
在设计产品时,通常使用外部MCU管理整个产品的系统电源,来控制产品在standby模式下的功耗。
1、TDA4VM能否使用内部的MCU代替外部MCU实现低功耗模式?
2、TDA4VM如何进入standby模式?
3、TDA4VM进入standby模式后,main域完全掉电,只有MCU域的处于standby模式,
这时为了使内部MCU工作,有哪些电源是必须有的?哪些电源是可以关闭的?
Thank you and best regards,
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1, 2, TDA4VM可以自己进入Standby模式,请查看TRM手册spruil1c.pdf上的Table 5-81. ACTIVE to Standby Mode。
| DRA829/TDA4VM Technical Reference Manual (Rev. C) |
3, standby模式下,电源都正常供电的。请看一下TRM手册5.2.3 Device Power States。
请看一下下面的文档,
https://software-dl.ti.com/jacinto7/esd/processor-sdk-rtos-jacinto7/latest/exports/docs/mcusw/mcal_drv/docs/drv_docs/demo_mode_switch_top.html
4.20.1.4.2. MCU only mode exit sequence
https://software-dl.ti.com/jacinto7/esd/processor-sdk-rtos-jacinto7/08_02_00_05/exports/docs/pdk_jacinto_08_02_00_21/docs/userguide/jacinto/modules/lpm/lpm_mcu_only_mode_jacinto.html