UPD78F0535GB(T)-UEU-A NEC, UPD78F0535GB(T)-UEU-A Datasheet - Page 496

• Manufacturer Part Number: UPD78F0535GB(T)-UEU-A
• Description: 8BIT MCU, 60K FLASH, 3KB RAM, LQFP
• Manufacturer: NEC

Specifications of UPD78F0535GB(T)-UEU-A

• Controller Family/series: UPD78
• No. Of I/o's: 55
• Ram Memory Size: 3KB
• Cpu Speed: 20MHz
• No. Of Timers: 8
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 60KB
• Oscillator Type: External, Internal

19.1 Interrupt Function Types
(1) Maskable interrupts
(2) Software interrupt
19.2 Interrupt Sources and Configuration
78F0536, 78F0537, and 78F0537D have a total of 29 interrupt sources, including maskable interrupts and software
interrupts. In addition, they also have up to four reset sources (see Table 19-1).
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The following two types of interrupt functions are used.
The
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 interrupt requests, each having the same priority, are simultaneously generated, then they are
processed according to the priority of vectored interrupt servicing. For the priority order, see Table 19-1.
A standby release signal is generated and STOP and HALT modes are released.
External interrupt requests and 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.
µ
External: 9, internal: 16
µ
External: 9, internal: 19
µ
PD78F0531, 78F0532, 78F0533
PD78F0534, 78F0535, 78F0536, 78F0537, 78F0537D
PD78F0531, 78F0532, and 78F0533 have a total of 26 interrupt sources, and the
CHAPTER 19 INTERRUPT FUNCTIONS
User’s Manual U17260EJ6V0UD
µ
PD78F0534, 78F0535,