
| Ref.: |
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SpaceWire Router |
| UserManual | |
Issue: | 3.4 | ||
User Manual | |||
Date: | 11th July 2008 | ||
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Table
Field | Description | Bytes |
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Config Port | The configuration port address field routes the packet to the configuration | 1 |
Address | port of the router. The configuration port address (00h) is always present |
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| when configuring the SpaceWire Router. |
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Destination | The destination logical address field is not used in the SpaceWire Router. | 1 |
Logical | The SpaceWire router accepts packets which have the default destination |
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Address | logical address of 254h (FEh). |
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Protocol | The RMAP protocol identifier is 01h. | 1 |
Identifier |
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Command | The command byte indicates a read single address packet. The Source path | 1 |
Byte | address length fields are set to the number of source path addresses |
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| required as defined in section 7.6.9. |
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Destination | The destination key identifier must match the contents of the destination key | 1 |
Key | register, see section 9.5.10. The default |
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Source | The source path address field is used to add source path addresses to the | 0,4,8,12 |
Path | head of the reply packet. The expected number of source path addresses is |
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Address | specified in the command byte. See section 7.6.9 for source path address |
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| decoding. |
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Source | The source logical address should be set to the logical address of the node | 1 |
Logical | which sent the command. |
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Address |
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Transaction | The transaction identifier identifies the command packet and reply packet | 2 |
Identifier | with a unique number. |
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Extended | The extended read address is not used in the SpaceWire router and shall | 1 |
Read | always be set to zero. |
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Address |
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Read | The read address identifies the register address to read from. The valid read | 4 |
Address | addresses are defined in section 9. |
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Data | The data length of a read single address command shall be set to 4 to read | 3 |
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| Preliminary | 58 |