tmp88f846ug TOSHIBA Semiconductor CORPORATION, tmp88f846ug Datasheet - Page 65

• Manufacturer Part Number: tmp88f846ug
• Description: 8 Bit Microcontroller
• Manufacturer: TOSHIBA Semiconductor CORPORATION

7.4.2 Setting procedure to generate a reset
low-voltage condition.
The following shows the setting procedure for generating a voltage detect 1 reset signal upon detection of a
1. Clear the interrupt enable flag of the voltage detecting circuit to 0.
2. Select the threshold voltage by programming the VDCR1<VD1LVL> bits.
3. Clear the VDCR2<VD1MOD> bit to 0 to generate an INTVLTD interrupt upon detection of a low-
4. Set the VDCR2<VD1EN> bit to 1 to enable voltage detect operation.
5. Wait for 5 us until the voltage detecting circuit stabilizes.
6. Ensure that the VDCR1<VD1SF> bit is 0.
7. Set the VDCR2<VD1MOD> bit to 1 to generate a voltage detect x reset signal upon detection of a
voltage condition.
low-voltage condition.
when a low-voltage detect reset is released, if the supply voltage (VDD) is found to be below the threshold voltage (VD1LVL)
before VDCR2<VD1EN> is cleared to 0, a voltage detect reset will immediately be generated.
(LD1LVL).
Note1) The VDCR1 and VDCR2 are only initialized by a power-on reset or an external reset input. Therefore, at the time
Note2) The voltage detect reset signal remains asserted while the supply voltage (VDD) is below the threshold voltage
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