tmp88f846ug TOSHIBA Semiconductor CORPORATION, tmp88f846ug Datasheet - Page 61

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

7. Voltage detection circuit (VLTD)
7.1 Configuration
VDD
of a low-voltage condition.
tion system, careful consideration must be given to ensure proper operation of the voltage detecting circuit by referring to the device's electrical
characteristics.
comparator and two control registers.
threshold voltage is selected through the VDCR1<VD1LVL> bits. The selected threshold voltage is used to generate
the input voltage into the comparator, which is then compared with the reference voltage. When the supply voltage
(VDD) falls below the threshold voltage (VD1LVL), the voltage detecting circuit generates an INTVLTD interrupt
or a voltage detect 1 reset signal.
The voltage detecting circuit monitors the supply voltage level and generates an interrupt or reset upon detection
Note:The voltage detecting circuit may not operate properly depending on transitions in supply voltage (VDD). When designing your applica-
The voltage detecting circuit is comprised of a reference voltage generator, a threshold voltage select circuit, a
Whether to generate an INTVLTD interrupt or a voltage detect x reset signal can be programmed by software.
Note: In the "development tool" of this device, since operation of the voltage detecting circuit is not supported, even if it
The supply voltage (VDD) is divided by a resistor ladder and is input into the threshold voltage select circuit. The
detects the set-up voltage, interrupt is not generated. Please check using a real device about actual operation.
2
VDCR1
Figure 7-1 Voltage detection circuit diagram
Reference
voltage
−
+
VDCR2
Page 51
F/F
Interrupt request
signal
Voltage detection 1 reset signal
INTVLTD
TMP88F846UG