Fujitsu FR81S User Manual
CHAPTER 16: INTERRUPT REQUEST BATCH READ
4. Registers
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER : INTERRUPT REQUEST BATCH READ
FUJITSU SEMICONDUCTOR CONFIDENTIAL
10
4.3. Interrupt Request Batch Read Register 1 upper-order :
IRPR1H (Interrupt Request Peripheral Read register
1H)
1H)
The bit configuration of the interrupt request batch read register 1 upper-order is explained.
This register indicates the peripheral that has issued the interrupt request. (Interrupt vector number #20)
IRPR1H : Address 041A
H
(Access : Byte, Half-word, Word)
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
RXIR0
ISIR0
Reserved
Initial value
0
0
0
0
0
0
0
0
Attribute R,WX
R,WX
R0,WX
R0,WX
R0,WX
R0,WX
R0,WX
R0,WX
[bit7] RXIR0 (Multi-Function-Serial-Interface RX Interrupt Request 0) : Multi-Function-Serial-Interface
ch.0 reception completion Interrupt Request
[bit6] ISIR0 (Multi-Function-Serial-Interface Status Interrupt Request 0) : Multi-Function-Serial-
[bit6] ISIR0 (Multi-Function-Serial-Interface Status Interrupt Request 0) : Multi-Function-Serial-
Interface ch.0 Status Interrupt Request
Read value of each bit
Meaning
0
No interrupt request has been issued.
1
An interrupt request has been issued.
MB91520 Series
MN705-00010-1v0-E
513