15 Quad Synchronous Serial Interface (QSPI)
S1C31D50/D51 TECHNICAL MANUAL
Seiko Epson Corporation
15-5
(Rev. 2.00)
#QSPISSn
QSDIOn1
QSDIOn0
QSPICLKn
#SPISS0
#SPISS1
#SPISS2
SDIO1
SDIO0
SPICK
S1C31 QSPI
(slave mode)
#SPISS
SDIO1
SDIO0
SPICK
#SPISS
SDIO1
SDIO0
SPICK
External dual-I/O
SPI slave devices
External duale-I/O
SPI master device
Figure 15.2.2.6 Connections between QSPI in Slave Mode and External Dual-I/O SPI Master Device
#QSPISSn
QSDIOn3
QSDIOn2
QSDIOn1
QSDIOn0
QSPICLKn
#QSPISS0
#QSPISS1
#QSPISS2
QSDIO3
QSDIO2
QSDIO1
QSDIO0
QSPICLK
S1C31 QSPI
(slave mode)
#QSPISS
QSDIO3
QSDIO2
QSDIO1
QSDIO0
QSPICLK
#QSPISS
QSDIO3
QSDIO2
QSDIO1
QSDIO0
QSPICLK
External QSPI
slave devices
External QSPI
master device
Figure 15.2.2.7 Connections between QSPI in Slave Mode and External QSPI Master Device