Quad Synchronous Serial Interface Master (Qspi_Master) - Epson S1C31D01 Software Manual

3.10 Quad Synchronous Serial Interface Master (QSPI_MASTER)

QSPI module is a Quad Synchronous Serial Interface supporting both master and slave modes.
This example provides a description of how to use a QSPI in the master mode.
Hardware Setup
1. The S5U1C31D01T1 evaluation board has an onboard serial flash device attached to the QSPI interface. In
order to run the QSPI master/slave sample programs, the serial flash on each board must be isolated from the
QSPI interface by removing 0-ohm resistors R30 to R35.
Note: Ensure that the 0-ohm connections for these resistors are restored after evaluating the QSPI
master/slave sample programs.
2. Connect the evaluation boards where the QSPI master/slave sample programs are installed.
Connect each port as follows:
DUAL or QUAD mode
[master]
TH34 QSDI0n3------------><-----------QSDIOn3
TH36 QSDI0n2------------><-----------QSDIOn2
TH38 QSDI0n1------------><-----------QSDIOn1
TH39 QSDI0n0------------><-----------QSDIOn0
TH40 QSPICLKn------------>>-----------QSPICLKn TH40
TH32 #QSPISSn------------>>-----------#QSPISSn TH32
J2.1 P36------------>>-----------P36
J2.47 GND------------><-----------GND
For definition of THx see S5U1C31D01T1 schematic in S5U1C31D01T1 manual.
Please note that the connections are different for single mode.
Uncomment out QSPI_MODE_SINGLE in settings.h for the single mode setup.
SINGLE mode
[master]
TH39 QSDI0n0------------->>----------QSDIOn1 TH38
TH38 QSDI0n1------------><-----------QSDIOn0 TH39
TH40 QSPICLKn------------>>-----------QSPICLKn TH40
TH32 #QSPISSn------------>>-----------#QSPISSn TH32
J2.1 P36------------>>-----------P36
J2.47 GND------------><-----------GND
42
[slave]
TH34
TH36
TH38
TH39
J2.1
J2.47
[slave]
J2.1
J2.47
Seiko Epson Corporation
S1C31D01 Peripheral Circuit Sample
Software Manual (Rev.3.00)