System interface signals
The system interface processes several input and output signals.
The following table shows the system interface signals.
Table A-8 System interface signals
|Signal name||Direction||Source or destination||Description|
|clk||Input||Clock generator||Core clock for all GFC-100 interfaces.|
Assert asynchronously, release synchronously with clk.
|irq||Output||Interrupt controller||Interrupt request. Active-HIGH.|
Indicates that power to the Flash macro is stable. Active-HIGH.
The process-specific part monitors this signal for a rising edge after reset. Transactions towards the Flash macro are not initiated before the rising edge occurs. Additional transitions are ignored.