upd78f0134hgka1-9et-a Renesas Electronics Corporation., upd78f0134hgka1-9et-a Datasheet - Page 357

• Manufacturer Part Number: upd78f0134hgka1-9et-a
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

17.1 Interrupt Function Types
(1) Maskable interrupts
(2) Software interrupt
17.2 Interrupt Sources and Configuration
maximum total of 5 reset sources are also provided (see Table 17-1).
The following two types of interrupt functions are used.
A total of 29 (26 in the PD78F0132H) interrupt sources exist for maskable and software interrupts. In addition,
These interrupts undergo mask control. Maskable interrupts can be divided into a high interrupt priority group
and a low interrupt priority group by setting the priority specification flag registers (PR0L, PR0H, PR1L, PR1H).
Multiple interrupt servicing can be applied to low-priority interrupts when high-priority interrupts are generated. If
two or more interrupts with the same priority are generated simultaneously, each interrupt is serviced according to
its predetermined priority (see Table 17-1).
A standby release signal is generated and STOP and HALT modes are released.
Nine external interrupt requests and 19 (16 in the PD78F0132H) internal interrupt requests are provided as
maskable interrupts.
This is a vectored interrupt generated by executing the BRK instruction. It is acknowledged even when interrupts
are disabled. The software interrupt does not undergo interrupt priority control.
CHAPTER 17 INTERRUPT FUNCTIONS
User’s Manual U16899EJ3V0UD
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