MMDOE28G5MPP-0VA Samsung Semiconductor, MMDOE28G5MPP-0VA Datasheet - Page 16

• Manufacturer Part Number: MMDOE28G5MPP-0VA
• Manufacturer: Samsung Semiconductor

Specifications of MMDOE28G5MPP-0VA

• Lead Free Status / RoHS Status: Supplier Unconfirmed

MMDOE28G5MPP-0VA
MMCRE64G5MPP-0VA
6.10 Status Register
This register contains the device status. The contents of this register are updated whenever an error occurs and at the completion of each
command.
If the host reads this register when an interrupt is pending, it is considered to be the interrupt acknowledge. Any pending interrupt is cleared
whenever this register is read.
If BSY=1, no other bits in the register are valid. And read/write operations of any other register are negated in order to avoid the returning of
the contesnts of this register instead of the other registers’ contents.
6.10.1 Field / bit description
7
6
5
4
3
2
1
0
BSY
DRDY
DF
DSC
DRQ
CORR
IDX
ERR
• BSY : Busy. BSY=1 whenever the device is accessing the registers. The host should not read or write any registers when BSY=1. If the host
reads any register when BSY=1, the contents of the Status Register will be returned.
• DRDY : Device Ready. RDY=1 indicates that the device is capable of responding to a command. RDY will be set to 0 during power on until
the device is ready to accept a command.
• DF : Device Fault. DF=1 indicates that the device has detected a write fault condition. DF is set to 0 after the Status Register is read by the
host.
• DSC : Device Seek Complete. DSC=1 indicates that a seek has completed and the device head is settled over a track. DSC is set to 0 by the
device just before a seek begins. When an error occurs, this bit is not changed until the Status Register is read by the
host, at which time the bit again indicates the current seek complete status.
When the device enters into or is in Standby mode or Sleep mode, this bit is set by device in spite of not spinning up.
• DRQ : Data Request. DRQ=1 indicates that the device is ready to transfer a word or byte of data between the host and the device. The host
should not write the Command register when DRQ=1.
• CORR : Corrected Data. Always 0.
• IDX : Index. IDX=1 once per revolution. Since IDX=1 only for a very short time during each revoltion, the host may not see it set to
1 even if the host is reading the Status Register continuously. Therefore the host should not attempt to use IDX for timing purposes.
• ERR : ERR=1 indicates that an error occurred during execution of the previous command. The Error Register should be read to determine
the error type. The device sets ERR=0 when the next command is received from the host.
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Final