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DSP56F803EVM Hardware User’s Manual
2.8 External Interrupts
Two on-board push-button switches are provided for external interrupt generation, as
shown in
. S2 allows the user to generate a hardware interrupt for signal line
IRQA. S3 allows the user to generate a hardware interrupt for signal line IRQB. These two
switches allow the user to generate interrupts for his user-specific programs.
Figure 2-6. Schematic Diagram of the User Interrupt Interface
2.9 Reset
Logic is provided in the DSP56F803 to generate a clean power-on RESET signal.
Additional, reset logic is provided to support the RESET signals from the JTAG
connector, the Parallel JTAG Interface and the user RESET push-button; see
Figure 2-7. Schematic Diagram of the RESET Interface
DSP56F803
IRQA
IRQA
IRQB
IRQB
+3.3V
+3.3V
RESET
PUSHBUTTON
MANUAL RESET
P_RESET
RESET
+3.3V
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