Format Of Interrupt Request Flag Register 1L; Format Of Interrupt Mask Flag Register 1L - NEC PD78076 User Manual

Pd78078 series; pd78078y series 8-bit single-chip microcontrollers
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(1) Interrupt request flag register 1L (IF1L)
It indicates whether a clock timer overflow is detected or not.
It is set by a 1-bit memory manipulation instruction and 8-bit memory manipulation instruction.
It is set to 00H by the RESET signal input.
Figure 22-19. Format of Interrupt Request Flag Register 1L
Symbol
<7>
6
IF1L
WTIF
0
0
Caution Set bits 5 and 6 to 0.
(2) Interrupt mask flag register 1L (MK1L)
It is used to set the standby mode enable/disable at the time the standby mode is released by the clock timer.
It is set by a 1-bit memory manipulation instruction and 8-bit memory manipulation instruction.
It is set to FFH by the RESET signal input.
Figure 22-20. Format of Interrupt Mask Flag Register 1L
Symbol
<7>
6
5
MK1L
WTMK
1
1
Caution Set bits 5 and 6 to 1.
524
CHAPTER 22 INTERRUPT FUNCTIONS
5
<4>
<3>
<2>
<1>
TMIF6
TMIF5
ADIF
TMIF2
<4>
<3>
<2>
<1>
TMMK6
TMMK5
ADMK
TMMK2
After
Address
<0>
Reset
FFE2H
00H
TMIF1
WTIF
Clock timer overflow detection flag
0
Not detected
1
Detected
After
Address
<0>
Reset
FFE6H
FFH
TMMK1
WTMK
Standby mode control by clock timer
0
Enables releasing the standby mode.
1
Disables releasing the standby mode.
R/W
R/W
R/W
R/W

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