4.4 Power-on Sequence

Power-onStart

a)SATA I/F Initialization

b)Self-diagnosis 1

-MPU bus test

-Internal register write/read test

-Work RAM write/read test

The spindle motor starts.

c)Self-diagnosis 2

-Data buffer write/read test

d)Confirming spindle motor speed

Load the head assembly

e)Initial on-track and read out of system information

f)Drive ready state (command waiting state)

g)Execute self-calibration

End

Figure 4.3 Power-on operation sequence

C141-E280

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