ES51970(6000counts)
DMM Analog front end with Inrush
2.7 Diode Measurement
MPU send write command to select the diode measurement function.
F3
F2
F1
F0
Measurement mode
Read data bytes
D0(0:18), D1(0:9)
0
1
1
0
Diode mode
Note1: D0/D1 both are binary format. ASIGN/BSIGN are the sign bit of D0/D1, respectively.
Diode measurement mode shares the same configuration with 6.000V voltage measurement
circuit and support the low-resistance detection. If the STBEEP output (pin64) is low, it
means the low-resistance status is detected (It means the OVX terminal voltage less than
9mV). It could be faster than the FADC result, so MPU could monitor the STBEEP output
and FADC (D1) data output make the high speed detection for short circuit detection. Set
SHBP=1 to enable the built-in buzzer driving automatically when STBEEP is active.
The default source voltage at diode mode is the same as V+ potential. MPU could set the
control bit EXT=1 to change the source voltage to external source. The external voltage
source (positive or negative) input applied from EXTSRC (pin16). The available external
source range should be from V+ to V-.
ver. 2.8
18
12/01/12
CYRUSTEK [ Cyrustek corporation ]
