Power-On And Comreset; Figure 5.20 Power-On Sequence - Fujitsu MHW2120BK Maintenance Manual

Interface

5.5 Power-on and COMRESET

Figure 5.20 shows the power-on sequence, and Figure 5.21 shows the
COMRESET sequence.
Immediately after power-on or COMRESET, the host sets 0x7Fh in the Status
field of the Shadow Block Register and 0xFFh in other fields. After the power-on
sequence shown below and after communication with the SATA interface is
established, the host sets 0xFFh in the Status field of the Shadow Block Register.
The device completes the power-on sequence within 10 ms so that communication
with the SATA interface can be established.
Host
power
on
Host
power
off ComReset
Host TX
(Device
RX)
Device
TX (Host
RX)
Device
power
off
5-186
Host
releases
ComReset
Host
Host
calibrate
Device
ComInit
Device
Device
releases
power
ComInit
on

Figure 5.20 Power-on sequence

Host
ComWake
Host
releases
ComWake
Device
Calibrate
Device
ComWake
Host
Align
Host
data
Device
Align
Device
data
C141-E261