High throughput serial RapidIO links connect the four MSC8144s to each other and to the data backplane. The serial RapidIO interfaces can run in x1 or x4 mode and are interconnected via a serial RapidIO switch. For the control plane, each MSC8144 RGMII Ethernet port is linked to the backplane ports via an Ethernet switch. An optional shared TDM interface is routed from each MSC8144 to the backplane extended ports.
For bootstrap purposes, a common serial I2C bus and EEPROM are connected between the MSC8144s. The EEPROM is programmed through a master MSC8144 or an in-circuit programmer attached to a header. AMC board management is handled via an onboard Module Management Controller. This provides the board with power sequencing, hot swap functionality, temperature sensing and FRU record storage. A number of debug and programming headers are offloaded to an expansion card via the front panel.
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