Data Sheet

NAU7802 24-bit ADC
Nuvoton Confidential - 33 - Revision 1.7
11.8 REG0x11: I2C Control
Bit
Name
Description
7
CRSD
Enable bit for Pull SDA low when conversion complete and I2C
IDLE(special non-standard I2C)
1 = enable
0 = disable (default)
6
FRD
Enable bit for Fast Read ADC DATA (special non-standard I2C)
1 = enable fast read ADC Data special non-standard I2C feature
0 = disable fast read ADC Data feature(default)
REG0x15 bit 7 must be also set to 1 in order to have this function
to work
5
SPE
Enable bit for Strong Pull Up for I2C SCLK and SDA
1 = enable strong pull up (nominal 1.6 k ohm)
0 = disable strong pull up (default)
4
WPD
Disable bit for Weak Pull Up for I2C SCLK and SDA
1 = disable weak pull up
0 = enable weak pull up (default nominal 50 k ohm)
3
SI
Short the input together, measure offset
2
BOPGA
Enables the 2.5uA burnout current source to the PGA positive
input when set to „1‟.
Default „0‟ disables the current source.
1
TS
Switches PGA input to temperature sensor when set to „1‟.
Default „0‟ uses VINx as PGA input
0
BGPCP
Disables bandgap chopper when set to „1‟.
Default „0‟ enables the bandgap chopper.