Product Summary

The HD6477034F20 is a 32-Bit RISC Microcomputer. The interrupt controller (INTC) determines the priority of interrupt sources and controls interrupt requests to the CPU. INTC has registers for assigning priority levels to interrupt sources. The register handles interrupt requests according to user-specified priorities.

Parametrics

HD6477034F20 absolute maximum ratings: (1)Power supply voltage, VCC: -0.3 to +7.0 V; (2)Program voltage, VPP: -0.3 to +13.5 V; (3)Input voltage (except port C), Vin: -0.3 to VCC + 0.3 V; (4)Input voltage (port C), Vin: -0.3 to AVCC + 0.3 V; (5)Analog power supply voltage, AVCC: -0.3 to +7.0 V; (6)Analog reference voltage, AVref: -0.3 to AVCC + 0.3 V; (7)Analog input voltage, VAN: -0.3 to AVCC + 0.3 V; (8)Operating temperature, Topr: -20 to +75℃; (9)Storage temperature, Tstg: -55 to +125℃.

Features

HD6477034F20 features: (1)16 settable priority levels: Five interrupt priority registers can set 16 levels of interrupt priorities for IRQ and on-chip supporting module interrupt sources; (2)NMI noise canceller function: INTC has an NMI input level bit that indicates the NMI pin status. By reading this bit in the interrupt exception handling routine, the pin status can be checked for use in a noise canceller function; (4)The interrupt controller can notify external devices (via the IRQOUT pin) that an on-chip interrupt has occurred. In this way an external device can, for example, be informed if an onchip interrupt occurs while the chip is operating in bus-released mode and the bus has been requested.

Diagrams

HD6477034F20 block diagram

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(USD)		 Quantity
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