upd70f3017ay Renesas Electronics Corporation., upd70f3017ay Datasheet - Page 106

• Manufacturer Part Number: upd70f3017ay
• Description: V850/sa1tm 32-/16-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

5.1 Outline
powered interrupt function that can service interrupt requests from a total of 30 sources.
dependent on program execution.
Moreover, exception processing can be started by the TRAP instruction (software exception) or by generation of an
exception event (fetching of an illegal opcode) (exception trap).
5.1.1 Features
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The V850/SA1 is provided with a dedicated interrupt controller (INTC) for interrupt servicing and realizes a high-
An interrupt is an event that occurs independently of program execution, and an exception is an event that is
The V850/SA1 can process interrupt requests from the on-chip peripheral hardware and external sources.
• Exceptions
The interrupt/exception sources are listed in Table 5-1.
•
• External interrupts: 8 sources (5 sources
• Internal interrupts: 24 sources
• 8 levels of programmable priorities
• Mask specification for interrupt requests according to priority
• Masks can be specified for each maskable interrupt request.
• Noise elimination, edge detection, and valid edge of external interrupt request signal can be specified.
Note Number of external interrupts that can release the software STOP mode.
• Software exceptions: 32 sources
• Exception trap: 1 source (illegal opcode exception)
Interrupts
CHAPTER 5 INTERRUPT/EXCEPTION PROCESSING FUNCTION
User’s Manual U12768EJ4V1UD
Note
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