Abstract: The present invention provides for systems and apparatus that support non-hotswappable (non-HA) 64-bit Compact Peripheral Component Interconnect (CPCI) cards so that customers can use their old legacy (non-hotswappable) cards in the node or input/output (I/O) slots of a hotswappable CPCI system. The system controller card in the CPCI system is responsible for configuring the entire CPCI interface including the width of the CPCI interface (i.e., 32-bit or 64-bit). In one embodiment of the present invention, all the radial HA control signals (e.g., BD—SEL#, HEALTHY#, PCI—RST#) to all of the CPCI slots are implemented separately on some other card (or board), such as a system management card (e.g., an alarm card). At the time of system powerup, only the system management card (SMC) powers up and checks the HEALTHY# register where it maintains the healthy status of all the cards in the system. The non-hotswappable card (or board) will assert the HEALTHY# signal to the SMC.

Abstract: The present invention provides for systems and apparatus that support non-hotswappable (non-HA) 64-bit Compact Peripheral Component Interconnect (CPCI) cards so that customers can use their old legacy (non-hotswappable) cards in the node or input/output (I/O) slots of a hotswappable CPCI system. The system controller card in the CPCI system is responsible for configuring the entire CPCI interface including the width of the CPCI interface (i.e., 32-bit or 64-bit). In one embodiment of the present invention, all the radial HA control signals (e.g., BD_SEL#, HEALTHY#, PCI_RST#) to all of the CPCI slots are implemented separately on some other card (or board), such as a system management card (e.g., an alarm card). At the time of system powerup, only the system management card (SMC) powers up and checks the HEALTHY# register where it maintains the healthy status of all the cards in the system. The non-hotswappable card (or board) will assert the HEALTHY# signal to the SMC.