FUJITSU MHW2120BS User Manual
Page 17
Contents
(46)
WRITE LOG EXT (X'3F') .......................................................... 5-158
(47)
READ VERIFY SECTOR (S) EXT (X’42’).............................. 5-162
(48)
FLUSH CACHE EXT (X’EA’) ................................................. 5-163
(49)
WRITE MULTIPLE FUA EXT (X'CE')..................................... 5-164
(50)
WRITE DMA FUA EXT (X'3D') ............................................... 5-165
(51)
READ FP DMA QUEUED (X'60') ............................................. 5-166
(52)
WRITE FP DMA QUEUED (X'61') ........................................... 5-167
5.3.3
Error posting ..................................................................................... 5-168
5.4 Command Protocol........................................................................................ 5-170
5.4.1
Non-data command protocol............................................................. 5-170
5.4.2
PIO data-in command protocol ......................................................... 5-172
5.4.3
PIO data-out command protocol ....................................................... 5-173
5.4.4
DMA data-in command protocol ...................................................... 5-175
5.4.5
DMA data-out command protocol .................................................... 5-176
5.4.6
Native Command Queuing protocol ................................................. 5-177
5.5 Power-on and COMRESET .......................................................................... 5-180
CHAPTER 6
Operations................................................................................. 6-1
6.1 Reset and Diagnosis .......................................................................................... 6-2
6.1.1
Response to power-on........................................................................... 6-2
6.1.2
Response to COMRESET..................................................................... 6-4
6.1.3
Response to a software reset ................................................................. 6-7
6.2 Power Save........................................................................................................ 6-8
6.2.1
Power save mode .................................................................................. 6-8
6.2.2
Power commands ................................................................................ 6-10
6.3 Power Save Controlled by Interface Power Management (IPM).................... 6-11
6.3.1
Power save mode of the interface ....................................................... 6-11
6.4 Read-ahead Cache ........................................................................................... 6-13
6.4.1
Data buffer structure ........................................................................... 6-13
6.4.2
Caching operation ............................................................................... 6-14
6.4.3
Using the read segment buffer ............................................................ 6-16
6.5 Write Cache..................................................................................................... 6-20
C141-E249
xiii