75MHz, Serial Peripheral Interface Flash Memory
Serial Peripheral Interface Modes
Figure 4: Bus Master and Memory Devices on the SPI Bus
R
SPI interface with
(CPOL, CPHA) =
(0, 0) or (1, 1)
SDO
SDI
SCK
SPI bus master
R
CS3
CS2 CS1
VSS
VCC
C
VCC
DQ1 DQ0
VSS
SPI memory
R
device
C
DQ1 DQ0
VCC
VSS
SPI memory
R
device
C
VCC
DQ1 DQ0
VSS
SPI memory
device
S#
W# RESET#
S#
W# RESET#
S#
W# RESET#
Figure 5: SPI Modes
CPOL CPHA
0
0
C
1
1
C
DQ0
MSB
DQ1
MSB
PDF: 09005aef845660e5
m45pe80.pdf - Rev. C 03/14 EN
14
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