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
Summary of Contents for MHW2040BS
Page 1: ...C141 E249 01EN MHW2120BS MHW2100BS MHW2080BS MHW2060BS MHW2040BS DISK DRIVES PRODUCT MANUAL ...
Page 4: ...This page is intentionally left blank ...
Page 8: ...This page is intentionally left blank ...
Page 10: ...This page is intentionally left blank ...
Page 12: ...This page is intentionally left blank ...
Page 42: ...This page is intentionally left blank ...
Page 54: ...This page is intentionally left blank ...
Page 74: ...This page is intentionally left blank ...
Page 86: ...Interface Figure 5 2 Example of the circuit for driving Ready LED 5 12 C141 E249 ...
Page 256: ...This page is intentionally left blank ...
Page 278: ...This page is intentionally left blank ...
Page 282: ...This page is intentionally left blank ...
Page 284: ...This page is intentionally left blank ...
Page 292: ...This page is intentionally left blank ...
Page 294: ......
Page 295: ......
Page 296: ......