Fujitsu FR81S User Manual
CHAPTER 30: POWER CONSUMPTION CONTROL
4. Registers
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER : POWER CONSUMPTION CONTROL
FUJITSU SEMICONDUCTOR CONFIDENTIAL
14
4.6. PMU Interrupt Flag Register 2 : PMUINTF2 (Power
Management Unit INTerrupt Flag2 register)
The bit configurations of the PMU interrupt flag register 2 are shown below.
This register indicates the interrupt request at shutdown.
PMUINTF2 : Address 0596
H
(Access: Byte, Half-word, Word)
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
RIF
NIF
MTIF
STIF
Reserved
Initial value
0
0
0
0
0
0
0
0
Attribute R(RM1),
W
R(RM1),
W
R(RM1),
W
R(RM1),
W
R0,W0 R0,W0 R0,W0
R0,W0
This register will be initialized by power-on reset, internal low-voltage reset, reset by simultaneous assert of
RSTX and NMIX, and hardware watchdog timer reset.
[bit7] RIF (Rtc Interrupt Flag)
This flag indicates the interrupt request by RTC at shutdown.
RIF
RTC interrupt request
0
No request
1
Request
This register is enabled only at shutdown.
This register is cleared by writing "0". Writing "1" is invalid.
[bit6] NIF(NmI Flag)
This flag indicates the interrupt request by NMI at shutdown.
NIF
NMI interrupt request
0
No request
1
Request
This register is valid only at shutdown.
This register is cleared by writing "0". Writing "1" is invalid.
[bit5] MTIF (Main Timer Interrupt Flag)
This flag indicates the interrupt request by Main Timer at shutdown.
MTIF
Main timer interrupt request
0
No request
1
Request
This register is enabled only at shutdown.
This register is cleared by writing "0". Writing "1" is invalid.
[bit4] STIF (Sub Timer Interrupt Flag)
This flag indicates the interrupt request by Sub Timer at shutdown.
STIF
Sub timer interrupt request
0
No request
1
Request
This register is enabled only at shutdown.
This register is cleared by writing "0". Writing "1" is invalid.
[bit3 to bit0] Reserved
The read value is always "0". Be sure to write these bits to "0".
MB91520 Series
MN705-00010-1v0-E
1101