Hitachi HDS723020BLA642 - Table 34 Phy Event Counter Identifiers

Hitachi hard disk drive specifications
80
For all counter descriptions, „transmitted‟ refers to items sent by the device to the host and „received‟ refers to
items received by the device from the host.
Bits 14:12 of the counter identifier convey the number of significant bits that counter uses. All
counter values consume a multiple of 16-bits. The valid values for bits 14:12 and the
corresponding counter sizes are:
1h 16-bit counter
2h 32-bit counter
3h 48-bit counter
4h 64-bit counter
Any counter that has an identifier with bit 15 set to one is vendor specific. This creates a vendor specific range of
counter identifiers from 8000h to FFFFh. Vendor specific counters shall observe the number of significant bits
14:12 as defined above.
Identifier
(Bits 11:0)
Mandatory /
Optional
Description
000h
Mandatory
No counter value; marks end of counters in the page
001h
Mandatory
Command failed and ICRC bit set to one in Error register
002h
Optional
R_ERR response for Data FIS
003h
Optional
R_ERR response for Device-to-Host Data FIS
004h
Optional
R_ERR response for Host-to-Device Data FIS
005h
Optional
R_ERR response for Non-data FIS
006h
Optional
R_ERR response for Device-to-Host Non-data FIS
007h
Optional
R_ERR response for Host-to-Device Non-data FIS
008h
Optional
Not supported (Device-to-Host non-Data FIS retries)
009h
Optional
Transitions from drive PhyRdy to drive PhyNRdy
00Ah
Mandatory
Signature Device-to-Host Register FISes sent due to a COMRESET
00Bh
Optional
CRC errors within a Host-to-Device FIS
00Dh
Optional
Non-CRC errors within a Host-to-Device FIS
00Fh
Optional
Not supported (R_ERR response for Host-to-Device Data FIS due to CRC
errors)
010h
Optional
Not supported (R_ERR response for Host-to-Device Data FIS due to
non-CRC errors)
012h
Optional
Not supported (R_ERR response for Host-to-Device Non-data FIS due to
CRC errors)
013h
Optional
Not supported (R_ERR response for Host-to-Device Non-data FIS due to
non-CRC errors)
Table 34 Phy Event Counter Identifiers
9.17.3.2.1 Counter Definitions
The counter definitions in this section specify the events that a particular counter identifier
represents.
9.17.3.2.1.1 Identifier 000h
There is no counter associated with identifier 000h. A counter identifier of 000h indicates that
there are no additional counters in the log page.
9.17.3.2.1.2 Identifier 001h
The counter with identifier 001h returns the number of commands that returned an ending status
with the ERR bit set to one in the Status register and the ICRC bit set to one in the Error register.