FUJITSU MHW2120BS User Manual
Page 61
4.4 Power-on Sequence
Start
Power-on
a)
Self-diagnosis 1
- MPU bus test
- Internal register
write/read test
- Work RAM write/read
test
The spindle motor starts.
Self-diagnosis 2
- Data buffer write/read
test
b)
Confirming spindle motor
speed
c)
Load the head assembly
Drive ready state
(command waiting state)
g)
Execute self-calibration
f)
Initial on-track and read
out of system information
e)
End
SATA I/F Initialization
d)
Figure 4.3 Power-on operation sequence
C141-E249
4-7