Digilent 410-181P-KIT - Manual (Page 2)

PmodSF2 Memory Module Reference Manual
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The legacy SPI interface standard uses four
signal lines. These are SS, slave select; MOSI,
master out slave in; MISO, master in slave out;
and SCK, serial clock. These signals map to
the following signals on the P5Q PCM part as
described in the Micron datasheet: SS
corresponds to the Chip Select signal
( ),
MOSI corresponds to Serial Data Input (D),
MISO corresponds to Serial Data Output (Q),
and SCK corresponds to the Serial Clock
signal (C). See the Micron datasheet for
descriptions of the Dual and Quad modes of
operation, as well as the use of the Write
Protect (
) and Hold ( ) signals.
A system board interacts with the PmodSF2
module by sending commands over the SPI
interface. Depending on the command sent,
the system board sends memory data to, or
receives memory data from, the module.
The P5Q PCM provides commands to perform
sector erase, bulk erase, page program, and
write commands as well as other
miscellaneous commands.
Refer to the Micron P5Q PCM IC data sheet
for detailed information on the operation of this
integrated circuit.
The PmodSF2 requires a 2.7V- 3.6V supply
voltage. This power supply voltage (3.3V) is
available on all Digilent system boards and is
provided as part of the 12-wire Pmod interface
standard. Digilent system boards that provide
Pmod interface connectors allow jumper
selection of the power supply voltage being
provided to the Pmod. Ensure that the system
board is jumpered to provide 3.3V to the
module before applying power to the board.
For detailed information on the P5Q PCM, see
the Micron data sheet provided on the
PmodSF2 product page.
Connector J1 Signals
Pin Signal
1
SS ( )
2 MOSI (D/DQ0)
3 MISO (Q/DQ1)
4 SCK (C)
5 GND
6 VCC
7 Not Used
8
/DQ2
9
/DQ3
10 Not Used
11 GND
12 VCC