Electrical Characteristics
3.3 V
VDDH = Nominal Value
VDD = Nominal Value
1
VDDH Nominal Level
2.2 V
1.2 V
VDD Nominal Level
o.5 V
Time
CLKIN Starts Toggling
PORESET/TRST Asserted
VDD/VDDH Applied
PORESET/TRST Deasserted
Figure 6. Start-Up Sequence: VDD and VDDH Raised Together
3.3 V
VDDH = Nominal
VDD = Nominal
1
VDDH Nominal
1.2 V
VDD Nominal
o.5 V
Time
PORESET/TRST asserted
VDD applied
CLKIN starts toggling
VDDH applied
PORESET/TRST deasserted
Figure 7. Start-Up Sequence: VDD Raised Before VDDH with CLKIN Started with VDDH
MSC8126 Quad Digital Signal Processor Data Sheet, Rev. 13
Freescale Semiconductor
17