Atmel SpW-10X user manual Command Error Response, SpaceWire Router, User Manual, Preliminary

Models: SpW-10X

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7.6.6 Command Error Response

 

 

 

SpW-10X

Ref.:

UoD_SpW-10X_

 

 

 

 

SpaceWire Router

 

UserManual

 

 

 

 

 

Issue:

3.4

 

 

 

 

 

 

User Manual

 

 

 

 

 

 

Date:

11th July 2008

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

address

 

 

 

 

 

 

 

 

 

 

 

 

Transaction

The transaction identifier identifies the command packet and reply packet with a

 

2

 

Identifier

unique number. The transaction identifier in the reply packet is copied from the

 

 

 

 

 

command packet and returned in this field, so that the command and the

 

 

 

 

 

corresponding reply have the same transaction identifier value.

 

 

 

 

 

 

 

 

 

Header

The header CRC used to detect errors in the header part of the command

 

1

 

CRC

packet. See section 7.6.7 for CRC generation.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7.6.6 Command Error Response

A summary of the error conditions and the action taken is given in Table 7-17. The error conditions are recorded in the configuration port status register.

Table 7-17 Configuration Port Errors Summary

Register Bits

Description

Reply

Returned As

Returned

 

 

Packet

 

RMAP

 

 

 

 

Status

 

 

 

 

Code

Invalid Header

The header CRC was invalid

No

No Reply Packet.

-

CRC

therefore the header is

 

 

 

 

corrupted

 

 

 

 

 

 

 

 

Unsupported

The protocol byte is not the

No

No Reply Packet.

-

Protocol Error

RMAP protocol identifier

 

 

 

 

 

 

 

 

Source Logical

The source logical address is

No

No Reply Packet.

-

Address Error

invalid (outside the range

 

 

 

 

20h-FFh)

 

 

 

 

 

 

 

 

Source Path

The source path address

No

No Reply Packet.

-

Address

sequence is invalid as

 

 

 

Sequence Error

specified in section 7.6.9

 

 

 

 

 

 

 

 

Unused RMAP

The command code is an

Yes

Unused RMAP command

2

command or

unused command code or

 

or packet type

 

packet type

the packet type is invalid.

 

 

 

 

 

 

 

 

Invalid

The destination key in the

Yes

Invalid Destination Key

3

Destination Key

command packet is invalid.

 

 

 

 

 

 

 

 

Invalid Data

The Data CRC is invalid

Yes

Invalid Data CRC

4

CRC

therefore the data part of the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Preliminary

 

74

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Image 74
Atmel SpW-10X user manual Command Error Response, SpaceWire Router, User Manual, Preliminary