Fujitsu FR81S User Manual
CHAPTER 16: INTERRUPT REQUEST BATCH READ
4. Registers
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER : INTERRUPT REQUEST BATCH READ
FUJITSU SEMICONDUCTOR CONFIDENTIAL
22
4.15. Interrupt Request Batch Read Register 8 upper-order
IRPR8H (Interrupt Request Peripheral Read register
8H)
8H)
The bit configuration of the interrupt request batch read register 8 upper-order is explained.
This register indicates the peripheral that has issued the interrupt request. (Interrupt vector number #50)
IRPR8H : Address 0428
H
(Access : Byte, Half-word, Word)
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
Reserved
FRTIR4
Reserved
Initial value
0
0
0
0
0
0
0
0
Attribute R0,WX
R0,WX
R,WX
R0,WX
R0,WX
R0,WX
R0,WX
R0,WX
[bit5] FRTIR4 (FRT Interrupt Request 4) : Free-run Timer ch.4 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
525