N f i g u r a b l e s y s t e m a t t r i b u t e s

S Y S T E M C O N T RO L M O D U L E

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Vectored interrupt controller (VIC) flow. .

V e c t o r e d i n t e r r u p t c o n t r o l l e r ( V I C ) f l o w

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This is how the VIC flow works:

1An interrupt occurs.

2The CPU branches to either the IRQ or FIQ interrupt vector.

3If the CPU goes to the IRQ vector, the CPU reads the service routine address from the VIC’s ISADDR register. The READ updates the VIC’s priority hardware to prevent current or any lower priority interrupts from interrupting again. The CPU must not read the ISADDR register for FIQ interrupts.

4The CPU branches to the Interrupt Service Routine (ISR) and stacks the workspace so the IRQ can be enabled.

5The CPU enables the IRQ interrupts so higher priority interrupts can be serviced.

6The CPU executes the interrupt service routine.

7The CPU clears the source of the current interrupt.

8The CPU disables the IRQ and restores the workspace.

9If IRQ, the CPU writes the level value of the interrupt being serviced to the ISADDR register to clear the current interrupt path in the VIC’s priority hardware.

10The CPU returns from the interrupt.

C o n f i g u r a b l e s y s t e m a t t r i b u t e s

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System software can configure these system attributes:

Little endian/big endian mode

Watchdog timer enable

Watchdog timeout generates IRQ/FIQ/RESET

Watchdog timeout interval

Enable/disable ERROR response for misaligned data access

System module clock enables

Enable access to internal registers in USER mode

P L L c o n f i g u r a t i o n

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Hardware strapping determines the initial powerup PLL (see “Bootstrap initialization” on page 152). After powerup, software can change the PLL settings by writing to the PLL Configuration register.

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NS9215 specifications

The Digi NS9215 is a powerful solution designed for industrial applications that require reliable connectivity and robust performance. Built on a foundation of advanced technologies, the NS9215 serves as a versatile networking device that meets the demands of automation, remote monitoring, and data acquisition.

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In conclusion, the Digi NS9215 is a robust networking device designed for a wide range of industrial applications. Its multi-protocol support, reliability, security features, user-friendly interface, and scalability make it a valuable addition to any industrial network infrastructure, delivering performance and efficiency that businesses can depend on for critical operations.

Digi NS9215 N f i g u r a b l e s y s t e m a t t r i b u t e s, L c o n f i g u r a t i o n

Models: NS9215

C o n f i g u r a b l e s y s t e m a t t r i b u t e s

P L L c o n f i g u r a t i o n

NS9215 specifications