Intel Agilex Configuration User Manual page 91

5. Remote System Update
UG-20205 | 2019.04.03
Mailbox Client Role
Figure 40. Command and Response Header Format
The following table describes the fields of the header command.
Table 23. Mailbox Client Intel Agilex FPGA IP Command and Response Header Description
Header
Reserved
ID
0
Length
Reserved
Command Code/Error Code
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.
[22:12] Number of words of arguments following the header. The IP responds with an error if a wrong number of
words of arguments is entered for a given command.
[11] Reserved. Must be set to 0.
[10:0]
Command Code
failed.
FIFO
Avalon-ST
Controller
Interface
Mailbox
FIFO
Driver
SDM
Communication
Hub
LENGTH 0
Description
specifies the command. The
Error Code
Secure
Device
Manager
COMMAND / ERROR CODE
indicates whether the command succeeded or
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Intel ® Agilex ™ Configuration User Guide
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