BU9817FV Rohm, BU9817FV Datasheet - Page 13

• Manufacturer Part Number: BU9817FV
• Description: 4-channel temperature sensor IC for PCs with I2C BUS interface
• Manufacturer: Rohm

Multimedia ICs
Mode settings table 2 / 2
(4) Vul and Vdl Register (Read / Write)
D0 to D7: Voltage limit data of Vul and Vdl.
Default after power on reset and reset mode is Vul = 80h, Vdl = 66h.
1 ch
2 ch
3 ch
4 ch
Channel
D0 : Shutdown
D1 : Comparator / Interrupt mode
D2 : Open Drain Polarity
D3 : Reset
D4 : Interval Speed
D5 : Interval Mode
“0” - Operation mode.
“1” - The BU9817FV stops A / D operation and goes into low power shutdown mode.
D0 bit of each channel is common bit.
“0” - Comparator mode.
“1” - Interrupt mode.
“0” - active low.
“1” - active high.
“0” - Operation mode.
“1” - Reset any bits except D3 bit of the configuration register, any registers, the A / D converter, and the
D3 bit of each channel is common bit.
Set the conversion cycle time of the 8bit A / D and the voltage hysteresis comparator when D5 bit (Interval
Mode) is “1”.
“0” - conversion cycle time is 4s.
“1” - conversion cycle time is 1s.
D4 bit of each channel is common bit.
“0” - normal mode.
“1” - Interval mode.
D5 bit of each channel is common bit.
voltage hysteresis comparator.
MSB
MSB
MSB
MSB
D7
bit6
bit6
bit6
bit6
D6
bit5
bit5
bit5
bit5
D5
bit4
bit4
bit4
bit4
D4
bit3
bit3
bit3
bit3
D3
bit2
bit2
bit2
bit2
D2
bit1
bit1
bit1
bit1
D1
LSB
LSB
LSB
LSB
D0
BU9817FV