UPD78F0078GK-9ET-A Renesas Electronics America, UPD78F0078GK-9ET-A Datasheet - Page 413

• Manufacturer Part Number: UPD78F0078GK-9ET-A
• Manufacturer: Renesas Electronics America

Specifications of UPD78F0078GK-9ET-A

• Lead Free Status / Rohs Status: Supplier Unconfirmed

Interrupt request held pending
Interrupt request held pending
IE:
ISP:
IF:
MK:
PR:
Interrupt request held pending
Interrupt request flag
Interrupt mask flag
Priority specification flag
Flag that controls acknowledgment of maskable interrupt requests (1 = Enable, 0 = Disable)
Flag that indicates the priority level of the interrupt currently being serviced (0 = High-priority interrupt
servicing, 1 = No interrupt request received, or low-priority interrupt servicing)
Figure 19-10. Interrupt Request Acknowledgment Processing Algorithm
Yes
No
Vectored interrupt servicing
interrupt request among those
simultaneously generated
Any high-priority
with
IE = 1?
CHAPTER 19 INTERRUPT FUNCTIONS
PR = 0?
No
Yes
User’s Manual U14260EJ4V0UD
Yes (High priority)
No
No
Vectored interrupt servicing
simultaneously generated
interrupt request among
request among those
those simultaneously
Any high-priority
with
Any interrupt
generated?
ISP = 1?
IE = 1?
MK = 0?
PR = 0?
Start
IF = 1?
PR = 0?
Yes (Interrupt request generation)
Yes
No (Low priority)
No
No
Yes
Yes
No
No
Interrupt request held pending
Interrupt request held pending
Interrupt request held pending
Interrupt request held pending
Yes
Yes
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