Fujitsu F2MC-16LX Hardware Manual page 94

CHAPTER 3 INTERRUPTS
Figure 3.6-8 Procedural Flow of the Expanded Intelligent I/O Service (EI
Processing by software
System tag area setting
EI
Initial
setting
Initial setting of built-in resource
Setting of ICR in the interrupt controller
Setting for start of operating
the built-in resource
Setting of interrupt enable bit
Setting ILM and I in the PS
Executing the user program
Reset of expanded intelligent I/O
service
(Including channel switching)
Data processing in the buffer
78
Start
2
OS descriptor setting
Branch to interrupt vector
RETI
Processing by hardware
(Interrupt request) and (ISE = 1)
Data transfer
Determine whether to branch to an
interrupt depending on a count-out
or request from the resource
S1,S0= 01 or
S1,S0= 11
2
OS)
S1,S0= 00
NO
YES