Table 34 Phy Event Counter Identifiers - Hitachi HDS723020BLA642 Specifications

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)
000h
001h
002h
003h
004h
005h
006h
007h
008h
009h
00Ah
00Bh
00Dh
00Fh
010h
012h
013h

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.
Mandatory /
Optional
Mandatory No counter value; marks end of counters in the page
Mandatory
Command failed and ICRC bit set to one in Error register
Optional
R_ERR response for Data FIS
Optional
R_ERR response for Device-to-Host Data FIS
Optional
R_ERR response for Host-to-Device Data FIS
Optional R_ERR response for Non-data FIS
Optional
R_ERR response for Device-to-Host Non-data FIS
Optional
R_ERR response for Host-to-Device Non-data FIS
Optional
Not supported (Device-to-Host non-Data FIS retries)
Optional
Transitions from drive PhyRdy to drive PhyNRdy
Mandatory Signature Device-to-Host Register FISes sent due to a COMRESET
Optional CRC errors within a Host-to-Device FIS
Optional
Non-CRC errors within a Host-to-Device FIS
Optional Not supported (R_ERR response for Host-to-Device Data FIS due to CRC
errors)
Optional Not supported (R_ERR response for Host-to-Device Data FIS due to
non-CRC errors)
Optional Not supported (R_ERR response for Host-to-Device Non-data FIS due to
CRC errors)
Optional Not supported (R_ERR response for Host-to-Device Non-data FIS due to
non-CRC errors)
Hitachi hard disk drive specifications
Description
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