NEC PD17062 - page 112

112
µ PD17062
Fig. 11-2 Interrupt Acceptance Flowchart
START
INTNC pin Timer VSYNC pin Serial interface
IPNC=1? IPBTM0=1? IPVSYN=1? IPSIO0=1?
No
Yes
No
Yes
No
Yes
No
yes
Yes
No
Yes
No
Yes
No
IRQNC=
IPNC=1?
IRQBTM0=
IPBTM0=1?
IRQVSYN=
IPVSYN=1?
IRQSIO0=
IPSIO0=1
No
Yes
Interrupt
request?
No
Yes
Interrupt
request?
No
Yes
Interrupt
request?
No
Yes
Interrupt
request?
No
Yes
IRQNC setting IRQBTM0 setting IRQVSYN setting IRQSIO0 setting
EI state?
Interrupt acceptance
IRQNC resetting IRQBTM0 resetting IRQVSYN resetting IRQSIO0 resetting