NEC PD17062 User Manual
Page 112
112
µ
PD17062
Fig. 11-2 Interrupt Acceptance Flowchart
START
INT
NC
pin
Timer
V
SYNC
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