upd70f3422gj-gae-qs-ax Renesas Electronics Corporation., upd70f3422gj-gae-qs-ax Datasheet - Page 199

• Manufacturer Part Number: upd70f3422gj-gae-qs-ax
• Description: 32-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

Interrupt Controller (INTC)
Figure 5-2
NMIWDT
NMI being
serviced
NMI0
Example of non-maskable interrupt request acknowledgement operation:
NMI request generated during NMI servicing
Preliminary User’s Manual U17566EE1V2UM00
NMI0 request
NMI0 request generated during
NMI0 servicing
NMI0 request generated during
NMIWDT servicing
NMIWDT
request
Main routine
Main routine
NMI request generated during NMI servicing
NMI0
NMI0 request
NMI0 request
System reset
NMI0 servicing
NMIWDT
servicing
(Invalid)
(Held pending)
Servicing of
pending NMI0
NMI0 request
request
request
NMI0
NMI0
NMIWDT
request
Main routine
Main routine
NMIWDT request generated
during NMI0 servicing
(NP = 1 retained before NMI1
request)
NMIWDT request generated
during NMI0 servicing (NP=0
set before NMIWDT request)
NMIWDT request generated
during NMI0 servicing (NP=0
set after NMIWDT request)
NMI1 request generated
during NMIWDT servicing
Main routine
Main routine
NMIWDT
request
NMIWDT
request
NP = 0
NP = 0
NMIWDT request
NMIWDT request
NMIWDT
pending)
NMI0 servicing
(Held
NMI0 servicing
System reset
System reset
System reset
System reset
(Invalid)
NMIWDT
servicing
NMI0 servicing
(Held pending)
NMIWDT servicing
NMIWDT
servicing
NMIWDT
servicing
Chapter 5
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