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TMS320C6678: 关于TMS320C6678上电顺序疑问

Part Number: TMS320C6678
Other Parts Discussed in Thread: LM3880

我看TMS320C6678上电顺序是以下这两种

我现在使用的LM3880只有3级上电顺序

能否这样子上电

CVDD→CVDD1→DVDD15/DVDD18

就是DVDD15和DVDD18一起作为第3级上电,请问可以吗?

  • 在数据手册上Table 7-2 Core Before IO Power Sequencing有下面这个注释。允许同时上电,但是一定要保证DVD15不能先于DVDD18。
    Although ramping DVDD18 and DVDD15 simultaneously is permitted, the voltage for DVDD15 must never exceed DVDD18.