Fujitsu FR81S User Manual
CHAPTER 16: INTERRUPT REQUEST BATCH READ
4. Registers
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER : INTERRUPT REQUEST BATCH READ
FUJITSU SEMICONDUCTOR CONFIDENTIAL
11
4.4. Interrupt Request Batch Read Register 1 lower-order :
IRPR1L (Interrupt Request Peripheral Read register
1L)
1L)
The bit configuration of the interrupt request batch read register 1 lower-order is explained.
This register indicates the peripheral that has issued the interrupt request. (Interrupt vector number #22)
IRPR1L : Address 041B
H
(Access : Byte, Half-word, Word)
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
RXIR1
ISIR1
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] RXIR1 (Multi-Function-Serial-Interface RX Interrupt Request 1) : Multi-Function-Serial-Interface
ch.1 reception completion Interrupt Request
[bit6] ISIR1 (Multi-Function-Serial-Interface Status Interrupt Request 1) : Multi-Function-Serial-
[bit6] ISIR1 (Multi-Function-Serial-Interface Status Interrupt Request 1) : Multi-Function-Serial-
Interface ch.1 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
514