upd78f9211grt2-jjg-a ETC-unknow, upd78f9211grt2-jjg-a Datasheet - Page 169

• Manufacturer Part Number: upd78f9211grt2-jjg-a
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: ETC-unknow

Address: FFE0H
Symbol
INTLVI
INTP0
INTP1
INTTMH1
INTTM000
INTTM010
INTAD
IF0
(1) Interrupt request flag register 0 (IF0)
An interrupt request flag is set to 1 when the corresponding interrupt request is issued, or when the
instruction is executed.
acknowledged or when a reset signal is input.
IF0 is set with a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation clears IF0 to 00H.
Interrupt Request Signal
Caution Because P21 and P32 have an alternate function as external interrupt inputs, when the
××IF×
ADIF
<7>
0
1
After reset: 00H
output level is changed by specifying the output mode of the port function, an interrupt
request flag is set. Therefore, the interrupt mask flag should be set to 1 before using the
output mode.
No interrupt request signal has been issued.
An interrupt request signal has been issued; an interrupt request status.
TMIF010
<6>
Table 10-2. Interrupt Request Signals and Corresponding Flags
Figure 10-2. Format of Interrupt Request Flag Register 0 (IF0)
TMIF000
<5>
It is cleared to 0 by executing an instruction when the interrupt request is
R/W
CHAPTER 10 INTERRUPT FUNCTIONS
LVIIF
PIF0
PIF1
TMIFH1
TMIF000
TMIF010
ADIF
TMIFH1
<4>
User’s Manual U16994EJ3V0UD
Interrupt Request Flag
PIF1
<3>
Interrupt request flag
PIF0
<2>
LVIIF
<1>
LVIMK
PMK0
PMK1
TMMKH1
TMMK000
TMMK010
ADMK
0
0
Interrupt Mask Flag
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