Datasheet

Value Name Description
0x1
READMEMORY Read data transfer from the serial memory.If enabled, scrambling is
performed.Read at random location (fetch) in the serial flash memory is
possible.
0x2
WRITE Write transfer into the serial memory.Scrambling is not performed.
0x3
WRITEMEMORY Write data transfer into the serial memory. If enabled, scrambling is
performed.
Bit 10 – ADDRLEN Address Length
The ADDRLEN bit determines the length of the address.
Value Name Description
0x0
24BITS 24-bits address length
0x1
32BITS 32-bits address length
Bits 9:8 – OPTCODELEN[1:0] Option Code Length
The OPTCODELEN field determines the length of the option code. The value written in OPTCODELEN
must be coherent with value written in the field WIDTH. For example: OPTCODELEN=0 (1-bit option
code) is not coherent with WIDTH=6 (option code sent with QuadSPI protocol, thus the minimum length
of the option code is 4-bit).
Value Name Description
0x0
1BIT 1-bit length option code
0x1
2BITS 2-bits length option code
0x2
4BITS 4-bits length option code
0x3
8BITS 8-bits length option code
Bit 7 – DATAEN Data Enable
Value Description
0
No data is sent/received to/from the serial flash memory.
1
Data is sent/received to/from the serial flash memory.
Bit 6 – OPTCODEEN Option Enable
Value Description
0
The option is not sent to the serial flash memory
1
The option is sent to the serial flash memory.
Bit 5 – ADDREN Address Enable
Value Description
0
The transfer address is not sent to the serial flash memory.
1
The transfer address is sent to the serial flash memory.
Bit 4 – INSTREN Instruction Enable
Value Description
0
The instruction is not sent to the serial flash memory.
1
The instruction is sent to the serial flash memory.
Bits 2:0 – WIDTH[2:0] Instruction Code, Address, Option Code and Data Width
This field defines the width of the instruction code, the address, the option and the data.
SAM D5x/E5x Family Data Sheet
QSPI - Quad Serial Peripheral Interface
© 2019 Microchip Technology Inc.
Datasheet
DS60001507E-page 1105