cop8sec520m National Semiconductor Corporation, cop8sec520m Datasheet - Page 22

• Manufacturer Part Number: cop8sec520m
• Description: 8-bit Cmos Based Microcontrollers With Memory Bytes Eeram
• Manufacturer: National Semiconductor Corporation

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7.0 Power Saving Features
8.0 Interrupts
8.1 INTRODUCTION
Each device supports eight vectored interrupts. Interrupt
sources include Timer 0, Timer 1, EERAM Write Complete,
Port L Wakeup, Software Trap, MICROWIRE/PLUS, and Ex-
ternal Input.
All interrupts force a branch to location 00FF Hex in program
memory. The VIS instruction may be used to vector to the
appropriate service routine from location 00FF Hex.
FIGURE 17. Multi-Input Wake Up Logic
FIGURE 18. Interrupt Block Diagram
(Continued)
22
The Software trap has the highest priority while the default
VIS has the lowest priority.
Each of the 7 maskable inputs has a fixed arbitration ranking
and vector.
Figure 18 shows the Interrupt Block Diagram.
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