µ
DRIVE
-
uSD
-
G1
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Serial Command Set
The data storage and retrieval takes place via the serial interface. With a handful of easy to
learn commands that provide reads and writes of data blocks from a single byte in size to
512 bytes of sectors. The simplified command set also means that very low overheads are
imposed on the host controller. The command set is grouped into 2 sections:
•
General Command Set
•
Disk Drive Operation Command Set
Each Command set is described in detail in the following sections.
NOTE!
The RX and the TX signals are at 3.3V levels. If interfacing to a host system running at
voltages greater than 3.6V levels, say 5.0Volts, then a 100 to 220 Ohms series resistor must
be inserted between the Host Tx and the µ
DRIVE
-
uSD
-
G1
Rx signals.
Serial Data Format: 8 Bits, No Parity, 1 Stop Bit.
