Altera cyclone V Technical Reference page 1145

15-56
flashcmd
Bit
17:16
numaddrbytes
15
enwrdata
14:12
numwrdatabytes
11:7
numdummybytes
Altera Corporation
Name
Set to the number of address bytes required (the
address itself is programmed in the FLASH
COMMAND ADDRESS REGISTERS)​. This should
be setup before triggering the command via bit 0 of
this register. 2'b00 : 1 address byte 2'b01 : 2 address
bytes 2'b10 : 3 address bytes 2'b11 : 4 address bytes
Value
0x0
0x1
0x2
0x3
Set to 1 if the command specified in the command
opcode field requires write data bytes to be sent to the
device.
Value
0x1
0x0
Up to 8 Data bytes may be written using this
command.
Value
0x0
0x1
0x2
0x3
0x4
0x5
0x6
0x7
Set to the number of dummy bytes required This
should be setup before triggering the command via
the execute field of this register.
Description
Description
Write 1 Address Byte
Write 2 Address Bytes
Write 3 Address Bytes
Write 4 Address Bytes
Description
Command requires write data bytes
No Action
Description
Write 1 Byte
Write 2 Byte
Write 3 Byte
Write 4 Byte
Write 5 Byte
Write 6 Byte
Write 7 Byte
Write 8 Byte
cv_5v4
2016.10.28
Access Reset
RW 0x0
RW 0x0
RW 0x0
RW 0x0
Quad SPI Flash Controller
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