Fujitsu F2MC-16LX Hardware Manual page 113

I Processing Specifications of Sample Program for Extended Intelligent I/O Service (EI
❍ Processing Specifications
• This program detects the "H" level signal input to the INT0 pin and activates the extended
intelligent I/O service (EI
• When the "H" level is input to the INT0 pin, El
0 to the memory at the "3000
• The number of transfer data bytes is 100 bytes. After 100 bytes are transferred, an interrupt
is generated because EI
❍ Sample coding
DDR1
ENIR
EIRR
ELVR
ICR00
BAPL
BAPM
BAPH
ISCS
I/OAL
I/OAH
DCTL
DCTH
ER0
STACK
STACK_T RW
STACK
;-------------------Main program-------------------------------------------------
CODE
START:
2
OS).
" address.
H
2
OS transfer has terminated.
EQU 000011H ;Port 1-direction register
EQU 000030H ;DTP/interrupt permission register
EQU 000031H ;DTP/interrupt cause register
EQU 000032H ;Request level setting register
EQU 0000B0H ;Interrupt control register 00
EQU 000100H ;Lower buffer address pointer
EQU 000101H ;Middle buffer address pointer
EQU 000102H ;Upper buffer address pointer
EQU 000103H ;EI
EQU 000104H ;Lower I/O address pointer
EQU 000105H ;Upper I/O address pointer
EQU 000106H ;Low-order data counter
EQU 000107H ;High-order data counter
EQU EIRR:0 ;Definition of external interrupt request flag bit
SSEG ;Stack
RW 100
1
ENDS
CSEG
AND CCR, #0BFH
MOV RP, #00
MOV A, #!STACK_T
MOV SSB, A
MOVW A, #STACK_T
MOVW SP, A
MOV I:DDR1, #00000000B ;Sets the P10/INT0 pin to input.
MOV BAPL, #00H
MOV BAPM, #30H
MOV BAPH, #00H
MOV ISCS, #00010001B
MOV IOAL, #00H
MOV IOAH, #00H
MOV DCTL, #64H
MOV DCTH, #00H
2
OS is activated. Data is transferred from port
2
OS status
;Clears the I flag of the CCR in the PS and
;prohibits interrupts.
;Sets the register bank pointer.
;Sets the system stack.
;Sets the stack pointer, then
;Sets SSP because the S flag = 1.
;Sets the buffer address (003000H).
;No I/O address update, byte transfer, buffer
;address updated, I/O -> buffer transfer,
;terminated by the peripheral function(resource).
;Sets the transfer source address
;(port 0:000000H).
;Sets the number of transfer bytes (100 bytes).
CHAPTER 3 INTERRUPT
2
OS)
97