Procedure For Use Of Extended Intelligent I/O Service (Ei 2 Os) - Fujitsu F2MC-16LX Hardware Manual

CHAPTER 3 INTERRUPT
3.6.4 Procedure for use of Extended Intelligent I/O Service (EI
To use extended intelligent I/O service (EI
peripheral function, interrupt control register (ICR), and other requirements must be set
up.
Procedure for Use of Extended Intelligent I/O Service (EI
Figure 3.6-8 shows the EI
Figure 3.6-8 Procedure for Use of Extended Intelligent I/O Service (EI
: EI
ISE
S1,S0 : EI
82
2
OS software and the process by hardware.
Processing by Software
START
Setting System stack area
2
Setting EI OS descriptor
Initializing Peripheral function
Setting Interrupt control
register (ICR)
Setting Operation start
set interrupt enable bit of
internal resource
Setting ILM, I in PS
User program execution
(Branch to Interrupt vector)
Resetting expanded
intelligent I/O service
(Changing channel etc.)
Data processing during buffer
RETI
2
OS enable bit of Interrupt control register (ICR)
2
OS status of Interrupt control register (ICR)
2
OS), the system stack area, EI
Processing by Hardware
(Interrupt request)and (ISE=1)
Decide whether to end counting or to
branch to an interrupt by termination
request from resource
S1,S0="01"or
S1,S0="11"
2
OS descriptor,
2
OS)
2
OS)
S1,S0="00"
Data transfer
NO
YES
2
OS)