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DSS(Display Subsystem) of AM3517

Michi Yama
Guru 10030 points
Other Parts Discussed in Thread: AM3517, SYSCONFIG

Hi,

I have some questions regarding the DSS(Display Subsystem) of AM3517.

1. According to the "12.3.1.4.6.3 Standby Procedure Description" of TRM,  DSS1_ALWON_FCLK is shut down when the PRCM.CM_FCLKEN_DSS[0]EN_DSS1 bit is set to 0 and the DSS is in standby mode.  Does this action have  relationship to sleep dependency?

2.  As you know, "12.3.1.4.6.3 Standby Procedure Description" describes regarding the procedure how to move to the standby mode. Does this have relationship to "DSS.DISPC_SYSCONFIG[13:12] MIDLEMODE bit in 12.3.1.4.6 Standby mode?

3. According to "12.3.1.4.6.4 Display Subsystem Standby Mode, Power-Saving Use Cases", it is written how to procedure  of DSS shut down.  As you know, DSS must be disabled before Clock stopping. I would like to know a concrete action of "DSS disable" . 

Please give me your advices.

I appreciate your quick reply.

Best regards,

Michi