MC-78F0712-KIT Renesas Electronics America, MC-78F0712-KIT Datasheet - Page 305

• Manufacturer Part Number: MC-78F0712-KIT
• Description: KIT REF SYSTEM 78K0 UPD78F0712
• Manufacturer: Renesas Electronics America

Specifications of MC-78F0712-KIT

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(2) When used as interrupt
<1> Mask the LVI interrupt (LVIMK = 1).
<2> Set bit 7 (LVION) of LVIM to 1 (enables LVI operation).
<3> Use software to instigate a wait of at least 0.2 ms.
<4> Wait until it is checked that “supply voltage (V
<5> Clear the interrupt request flag of LVI (LVIIF) to 0.
<6> Release the interrupt mask flag of LVI (LVIMK).
<7> Execute the EI instruction (when vectored interrupts are used).
Figure 20-4 shows the timing of the interrupt signal generated by the low-voltage detector. The numbers in
this timing chart correspond to <1> to <6> above.
When starting operation
When stopping operation
Either of the following procedures must be executed.
When using 8-bit memory manipulation instruction:
When using 1-bit memory manipulation instruction:
Write 00H to LVIM.
Clear LVION to 0.
CHAPTER 20 LOW-VOLTAGE DETECTOR
User’s Manual U17890EJ2V0UD
DD
) > detection voltage (V
LVI
)” by bit 0 (LVIF) of LVIM.
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