GR740-UM-DS, Nov 2017, Version 1.7 201 www.cobham.com/gaisler
GR740
Table 214. 0x00000004 - RTR.PNPLNKINFO -SpaceWire Plug-and-Play - Link Information
31 24 23 22 21 20 16 15 13 12 8 7 6 5 4 0
OLA OAL R OL RES RL T U R LC
0x00 0x0 0 0x0 0x0 0x0 1 0 0 0xC
r rrrrrrrrr
31: 24 Owner logical address (OLA) - Shows the value of the Initiator Logical Address field from the last successful
compare-and-swap command that set the Device ID field.
23: 22 Owner address length (OAL) - Shows how many of the three Owner Address fields that contain valid data.
21 RESERVED
20: 16 Owner link (OL) - Shows the number of the port which was used for the last successful operation to set the value
of the Device ID field.
15: 13 RESERVED
12: 8 Return link (RL) - Shows the number of the port through which the reply to the current read command will be
transmitted.
7 Device type (T) - Constant value of 1, indicating that this device is a router.
6 Unit information (U) - Indicates if the unit identification information (Unit Vendor and Product ID field, and
Unit Serial Number field) are valid. 0 = invalid, 1 = valid. This bit will be 0 after reset / power-up. Once the Unit
Vendor and Product ID field has been written with a non-zero value, this bit will be set to 1.
5 RESERVED
4: 0 Link count (LC) - Shows the number of router ports. Constant value of 0xC.
Table 215. 0x00000005 - RTR.PNPOA0 - SpaceWire Plug-and-Play - Owner Address 0
31 0
RA
0x00000000
r
31: 0 Reply address (RA) - Shows byte 0-3 of the Reply Address from the last successful compare-and-swap com-
mand that set to the Device ID field. If there was no Reply Address, then this field is zero.
Table 216. 0x00000006 - RTR.PNPOA1 - SpaceWire Plug-and-Play - Owner Address 1
31 0
RA
0x00000000
r
31: 0 Reply address (RA) - Shows byte 4-7 of the Reply Address from the last successful compare-and-swap com-
mand that set to the Device ID field. If the Reply Address was four bytes or less, then this field is zero.
Table 217. 0x00000007 - RTR.PNPOA2 - SpaceWire Plug-and-Play - Owner Address 2
31 0
RA
0x00000000
r
31: 0 Reply address (RA) - Shows byte 8-11 of the Reply Address from the last successful compare-and-swap com-
mand that set to the Device ID field. If the Reply Address was eight bytes or less, then this field is zero.
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