si4430 Silicon Laboratories, si4430 Datasheet - Page 98

• Manufacturer Part Number: si4430
• Description: Si4430 Ism Transceiver
• Manufacturer: Silicon Laboratories

Register 1Ah. Low Battery Detector Threshold
Register 1Bh. Battery Voltage Level
Si4430
Reset value = xxx10100
Reset value = xxxxxxxx
98
Name
*Note: The threshold can be calculated as V
Name
Type
Type
Bit
Bit
7:5
4:0
7:5
4:0
Bit
Bit
Reserved
Reserved
vbat[4:0]
lbdt[4:0]
Name
Name
D7
D7
Reserved
Reserved
Reserved.
Low Battery Detector Threshold.
This threshold is compared to Battery Voltage Level. If the Battery Voltage is less than the
threshold the Low Battery Interrupt is set. Default = 2.7 V.*
Reserved.
Battery Voltage Level.
The battery voltage is converted by a 5 bit ADC. In Sleep Mode the register is updated in
every 1 s. In other states it measures continuously.
D6
D6
R
R
D5
D5
threshold
Preliminary Rev. 0.4
= 1.7 + lbdt x 50 mV.
D4
D4
Function
Function
D3
D3
vbat[4:0]
lbdt[4:0]
R/W
D2
D2
R
D1
D1
D0
D0