COBHAM GR740 User Manual

GR740-UM-DS, Nov 2017, Version 1.7 195 www.cobham.com/gaisler
GR740
Table 199. 0x00000A40 - RTR.LRUNSTAT - Link running status
31 98 10
RESERVED LR R
0x000000 0x00 0
rrr
31: 19 RESERVED
18: 1 Link running status (LR)- Each bit is set to 1 when the link interface for the SpaceWire port with the same num-
ber as the bit index is in run-state. If the link interface is not in run-state, the bit is set to 0.
0 RESERVED
Table 200. 0x00000A44 - RTR.CAP - Capability
31 26 25 24 23 22 20 19 18 16 15 14 13 12 11 10 9 5 4 0
RESERVED AF R PF R RM R AS AX DP ID SD PC CC
0x00 0x3 0 0x3 0 0x0 0 0 1 0 1 1 0x00 0x00
r rrrrrrrrrrr r r
31: 26 RESERVED
25: 24 AMBA port word FIFO size (AF) - Shows the number of entries in the AMBA port’s 32-bit FIFOs. The number
of entries is determined by the value of this field, according to the formula: Entries = 2
(RTR.CAP.PF+2)
. Constant
value of 0x3 = 32 entries.
23 RESERVED
22: 20 Port N-char FIFO size (PF) - Shows the number of entries in the port’s N-char FIFOs. The number of entries is
determined by the value of this field, according to the formula: Entries = 2
(RTR.CAP.PF+4)
. Constant value of 0x3
= 128 entries.
19 RESERVED
18: 16 RMAP maximum data length (RM) - This field specifies the maximum data length in an RMAP read / write
command that the configuration port can handle. The length can be determined according to the formula: Length
= 2
(RTR.CAP.RM+2)
. Constant value of 0x0 = 4 bytes.
15 RESERVED
14 Synchronous / asynchronous auxiliary interface (AS) - Constant value of 0, indicating that the auxiliary time-
code / distributed interrupt code interface is synchronous to the system clock.
13 Auxiliary time-code / distributed interrupt code support (AX) - Specifies that the router has support for the aux-
iliary time-code / distributed interrupt code feature described in 13.2.19. Constant value of 1.
12 SpaceWire dual port (DP) - Constant value of 0, indicating that SpaceWire ports are not implemented with dual
ports.
11 Distributed interrupt support (ID) - Specifies that the router has support for the interrupt code distribution
scheme, described in 13.2.18. Constant value of 1.
10 SpaceWire-D support (SD) - Specifies that the router has support for the SpaceWire-D, described in section
13.2.21. Constant value of 1.
9: 5 Port packet counter bits (PC) - Specifies the number of bits in the port’s incoming / outgoing packet counters.
Constant value of 0x00 = no packet counters.
4: 0 Port character counter bits (CC) - Specifies the number of bits in the port’s incoming / outgoing character count-
ers. Constant value of 0x00 = no character counters.

COBHAM GR740 Specifications

General

Brand	COBHAM
Model	GR740
Category	Computer Hardware
Language	English