mmdoe28gxmsp-0va Samsung Semiconductor, Inc., mmdoe28gxmsp-0va Datasheet - Page 36

• Manufacturer Part Number: mmdoe28gxmsp-0va
• Description: Samsung Pm410 Ssd 1.8 Lif 128/64gb
• Manufacturer: Samsung Semiconductor, Inc.

9.2 Activity LED indication
The signal provides for activity indication is a low-voltage low-current driver intended for efficient integration into present and future IC manu-
facturing processes. The signal is NOT suitable for directly driving an LED and must first be buffered using a circuit external to the drive before
driving an LED.
9.3 Asynchronous Signal Recovery
Phys may support asynchronous signal recovery for those applications where the usage model of device insertion into a receptacle does not
apply. When signal is lost, both the host and the device may attempt to recover the signal. A host or device shall determine loss of signal as
represented by a transition from PHYRDY to PHYRDYn, which is associated with entry into states LSI: NoCommErr or LS2:NoComm within
the Link layer. Note that negation of PHYRDY does not always constitute a loss of signal. Recovery of the signal is associated with exit from
state LS2:NoComm. If the device attempts to recover the signal before the host by issuing a COMINIT, the device shall return its signature fol-
lowing completion of the OOB sequence which included COMINIT. If a host supports asynchronous signal recovery, when the host receives an
unsolicited COMINIT, the host shall issue a COMRESET to the device. When a COMRESET is sent to the device in response to an unsolicited
COMINIT, the host shall set the Status register to 7Fh and shall set all other Shadow Command Block Registers to FFh. When the COMINIT
is received in response to the COMRESET which is associated with entry into state HP2B:HR_AwaitNoCOMINIT, the Shadow Status register
value shall be updated to either FFh or 80h to reflect that a device is attached.
MMCRE64GXMSP-0VA
MMDOE28GXMSP-0VA
36
Revision 1.0
Final