512Mb, Multiple I/O Serial Flash Memory
Serial Peripheral Interface Modes
Figure 5: Bus Master and Memory Devices on the SPI Bus
VSS
VCC
R
SDO
SDI
SPI interface:
(CPOL, CPHA) =
(0, 0) or (1, 1)
SCK
C
VCC
VCC
VCC
C
C
VSS
VSS
VSS
SPI bus master
DQ1 DQ0
DQ1 DQ0
DQ1 DQ0
SPI memory
device
SPI memory
device
SPI memory
device
R
R
R
CS3
CS2 CS1
S#
S#
S#
W# HOLD#
W# HOLD#
W# HOLD#
Figure 6: SPI Modes
CPOL CPHA
0
1
0
1
C
C
MSB
DQ0
MSB
DQ1
PDF: 09005aef84752721
n25q_512mb_1ce_3V_65nm.pdf - Rev. O 05/13 EN
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