Specifications

SATA-IO Confidential 36
o If not Slumber IPM request has been generated by the device, issue a
STANDBY IMMEDIATE command to device and wait up to 10 seconds
• NOTE – a device vendor may provide a vendor unique tool for initiating the power
management requests as to ensure the test does complete as necessary.
 Issue COMWAKE and wait for complete wake of device
• This requirement must be verified on 10 total sequences
• Setup bus analyzer (or scope) for tracing of bus activity & begin tracing
Measurement Requirements (Host)
• Issue PMREQ_S to host
• Issue COMWAKE and wait for complete wake of host
• This requirement must be verified on 10 total sequences
• Device : Confirm Slumber wake sequence completion and COMWAKE timing of being within 10ms of
COMWAKE receipt from host (use trace to analyze timings)
Pass/Fail Criteria
o NOTE : In the case that no device initiated request was completed for any of the test sequences, the
pass/fail result will be N/A.
• Host : Confirm Slumber wake sequence completion and ALIGN timing of being within 10ms of COMWAKE
receipt from device/emulator/tool (use trace to analyze timings)
• Since a single pass/fail result is reported, it must be verified that all 10 test sequences were a pass for the
final result to be a PASS for this test requirement.
2.5.11. IPM-11 : Speed matching upon resume (device-initiated)
2.5.11.1. Device/Host Expected Behavior
See section 8.4.3.1 of Serial ATA Revision 2.6.
The product signaling speed upon returning from a partial or slumber state shall match the speed prior to entering the
partial or slumber state.
• Check Word 78 bit 3 in IDENTIFY DEVICE or IDENTIFY PACKET DEVICE (set to one)
Measurement Requirements (Device)
o If the above is true, then run the following test (DIPM)
 Note the current interface rate – determination of the current interface rate is MOI specific
 Wait for an IPM request from the device
• NOTE – there is no guaranteed method for causing the device to send a request, the
recommended method to cause a request is:
o Leave the device idle and wait up to 10 seconds for a IPM request.
o If no IPM request has been generated by the device, issue a STANDBY
IMMEDIATE command to device and wait up to 10 seconds
• NOTE – a device vendor may provide a vendor unique tool for initiating the power
management requests as to ensure the test does complete as necessary.
 Issue COMWAKE and wait for complete wake of device
 Note the current interface rate – determination of the current interface rate is MOI specific
• This requirement must be verified on 10 total sequences of PMREQ_P if supported and 10 total sequences of
PMREQ_S if supported.
• Note the current interface rate – determination of the current interface rate is MOI specific
Measurement Requirements (Host)
• Issue PMREQ_P or PMREQ_S and receive host response
• Issue COMWAKE and wait for complete wake of host
• Note the current interface rate – determination of the current interface rate is MOI specific