Intel Agilex Configuration User Manual page 133

4. Remote System Update (RSU)
UG-20205 | 2019.10.09
Mailbox Client Role
Figure 58. Command and Response Header Format
Note: The LENGTH field in the command header must match the command length of corresponding command.The following table
describes the fields of the header command. Your client must read all the response words, even if your client does not
interpret all the response words.
Table 34. Mailbox Client Intel FPGA IP Command and Response Header Description
Header
Reserved
ID
0
Send Feedback
FPGA Core Fabric
Host Controller
Mailbox Client Intel FPGA IP
JTAG
to
Avalon-MM
Avalon Master
Interface
Nios II
IRQ
Processor
Custom
Logic
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
RESERVED ID 0
Bit
[31:28] Reserved.
[27:24] The command ID. The response header returns the ID specified in the command header. Set different
IDs in each command to match responses with commands.
[23] Reserved.
FIFO
Avalon-ST
Controller
Interface
Mailbox
FIFO
Driver
SDM
Communication
Hub
LENGTH 0
Description
Secure
Device
Manager
COMMAND / ERROR CODE
continued...
Intel ® Agilex ™ Configuration User Guide
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