RapidIO: The Next Generation Communication Fabric For Embedded Application

C.2. GENERIC END POINT DEVICES: SOFTWARE-ASSISTED ERROR RECOVERY OPTION

This section describes the 8/16 LP-LVDS registers for a general end point device that supports software assisted error recovery. This is most useful for devices that for whatever reason do not want to implement error recovery in hardware and to allow software to generate link-request control symbols and see the results of the responses. This extended features register block is assigned extended features block ID=0×0002.

C.2.1. Register Map

Table C.10 shows the register map for generic RapidIO 8/16 LP-LVDS end point devices with software-assisted error recovery. The block offset is the offset based on the extended features pointer (EF_PTR) to this block. This register map is currently defined only for devices with up to 16 RapidIO ports, but can be extended or shortened if more or less port definitions are required for a device. For example, a device with four RapidIO ports is only required to use register map space corresponding to offsets [EF_PTR + 0×00] through [EF_PTR + 0×98]. Register map offset [EF_PTR + 0×A0] can be used for another extended features block.

Table C.10. Physical 8/16 LP-LVDS register map

Block byte offset	Register name (Word 0)	Register name (Word 1)
0×0	8/16 LP-LVDS port Maintenance block header
0×8–18	Reserved
0×20	Port link time-Out control CSR	Port response time-out control CSR
0×28	Reserved
0×30	Reserved
0×38	Reserved	Port General Control CSR
0×40	Port 0 link maintenance request CSR	Port 0 link ...