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You use daisy-chain signals when two or more VICs are daisy-chained. See Daisy-chained interrupt controller. Table A.3 lists the daisy-chain signals.
Table A.3. Daisy-chain signals
Name | Type | Source/ destination | Description |
|---|---|---|---|
VICVECTADDRIN [31:0] | Input | External interrupt controller | Connects to the VICVECTADDROUT[31:0] signal of the previous VIC if you use daisy-chaining. Connects to logic 0 if the VIC is not daisy-chained. |
VICVECTADDROUT [31:0] | Output | Interrupt controller | Connects to the VICVECTADDRIN[31:0] signal of the next VIC if you use daisy-chaining. Left unconnected if the VIC is not daisy-chained. |
nVICIRQIN | Input | External interrupt controller | Connects to the nVICIRQ signal of the previous VIC if you use daisy-chaining. Connects to logic 1 if the VIC is the last in the daisy-chain, or if VIC is not daisy-chained. |
nVICFIQIN | Input | External interrupt controller | Connects to the nVICFIQ signal of the previous VIC if you use daisy-chaining. Connects to logic 1 if the VIC is the last in the daisy-chain, or if VIC is not daisy-chained. |
| Copyright © 2000, 2003-2004 ARM Limited. All rights reserved. | ARM DDI 0181E |
| Non-Confidential | |
| PDF version | |
| Home > Signal Descriptions > Daisy-chain signals |