Specifications

SATA-IO Confidential 22
In a case where the device is in an interface quiescent state in response to receipt of a COMRESET signal from the
host, the device shall respond with a COMINIT signal within 10 ms of de-qualification of a received COMRESET
signal.
• Power on host & device
Measurement Requirements
• Setup bus analyzer (or scope) for tracing of bus activity & begin tracing
• Initiate COMRESET sequence
o This requirement must be verified on 5 total sequences within the trace.
• Confirm OOB sequence completion and COMINIT timing of being within 10ms of COMRESET receipt from
host (use trace to analyze timings). Since a single result is reported, the worst-case result out of all 5 cases
must be reported (i.e. largest value).
Pass/Fail Criteria
• NOTE : the time to be compared to this requirement is from the end of the COMRESET burst (detectable
point) to the start of COMINIT burst from the device. Some subtraction or modification to a result displayed
by a bus analyzer may be necessary to extract the appropriate value for comparison.
2.3.2. ASR-02 : COMINIT OOB Interval
2.3.2.1. Device Expected Behavior
See section 8.2 of Serial ATA Revision 2.6.
When Phy communication is not established, the device shall not initiate a new OOB (COMINIT) to the host faster
than every 10 ms.
• Power on host & device
Measurement Requirements
• Setup bus analyzer (or scope) for tracing of bus activity & begin tracing
• Power off host, keeping device powered on
o This requirement must be verified on 10 total sequences within the trace.
• Verify that once host is powered off, that device sends COMINIT repeatably and no faster than every 10ms
(use trace to verify behavior and timings). Since a single result is reported, the worst-case result out of all 10
cases must be reported (i.e. smallest value).
Pass/Fail Criteria
• NOTE : the time to be compared to this requirement is from the start of the first COMINIT burst (detectable
point) to the start of a subsequent COMINIT burst from the device. Some subtraction or modification to a
result displayed by a bus analyzer may be necessary to extract the appropriate value for comparison.
2.3.3. ASR-03 : COMRESET OOB Interval
2.3.3.1. Host Expected Behavior
See section 8.3 of Serial ATA Revision 2.6.
When Phy communication is not established, the host shall not initiate a new OOB (COMRESET) to the device faster
than every 10 ms.
• Power on host & device
Measurement Requirements
• Setup bus analyzer (or scope) for tracing of bus activity & begin tracing
• Power off device, keeping host powered on
o This requirement must be verified on 10 total sequences within the trace.