English
Language : 

E981.03 Datasheet, PDF (47/51 Pages) ELMOS Semiconductor AG – Autonomous MAC and individual physical address
KNX/ EIB TRANSCEIVER
PRODUCTION DATA - JAN 15, 2015
E981.03
Digital monitoring registers
The measurement values are scaled to limit them below the supply voltage (V33I) of the ADC and analog to digi-
tal converted. For scaling values look at chapter Electrical Charecteristics section Monitoring Functions.
Table 63. Voltage supervision registers
Register Name
Address
Description
ADC_VBUSP_MEAN 0x39D
ADC_VSTRES
0x397
ADC_V20RES
0x398
ADC_VCCRES
0x399
ADC_VIORES
0x39A
m1 LeSaBn=vVaBlUuSPe,mfeoanr*sVcBaUlSeP VvBoUSltP,aADgCe/V33I +- 5%
ADC result for the (scaled) voltage
1 LSB=VVST*scaleVST,ADC/V33I +- 5%
on
VST
ADC result for the (scaled) voltage on V20
1 LSB=V20*scaleV20,ADC/V33I +- 5%
ADC result for the (scaled)
1 LSB=VCC*scaleVCC,ADC/V33I
voltage
+- 5%
on
pin
VCC
ADC result for the (scaled)
1 LSB=VIO*scaleVIO,ADC/V33I
voltage
+- 5%
on
VIO
Table 64. Mean value for VBUSP voltage
back to Table 8 Register Table
ADC_VBUSP_MEAN MSB
LSB
content
V7
hard reset value 0
soft reset value
access
R 1)
V6
V5
V4
V3
V2
V1
V0
0
0
0
0
0
0
0
- (not reset)
R 1)
R 1)
R 1)
R 1)
R 1)
R 1)
R 1)
1) Access via UART service and SPI possible. In case of hard reset the register is reset to the hard reset value.
Table 65. ADC result for the (scaled) voltage on VST
back to Table 8 Register Table
ADC_VSTRES
MSB
LSB
content
V7
V6
V5
V4
V3
V2
V1
V0
hard reset value 0
0
0
0
0
0
0
0
soft reset value
- (not reset)
access
R 1)
R 1)
R 1)
R 1)
R 1)
R 1)
R 1)
R 1)
1) Access via UART service and SPI possible. In case of hard reset the register is reset to the hard reset value.
Table 66. ADC result for the (scaled) voltage on V20
back to Table 8 Register Table
ADC_V20RES
MSB
content
V7
hard reset value 0
soft reset value
access
R 1)
LSB
V6
V5
V4
V3
V2
V1
V0
0
0
0
0
0
0
0
- (not reset)
R 1)
R 1)
R 1)
R 1)
R 1)
R 1)
R 1)
1) Access via UART service and SPI possible. In case of hard reset the register is reset to the hard reset value.
Table 67. ADC result for the (scaled) voltage on pin VCC
back to Table 8 Register Table
ADC_VCCRES
MSB
LSB
content
V7
V6
V5
V4
V3
V2
V1
V0
hard reset value 0
0
0
0
0
0
0
0
soft reset value
- (not reset)
access
R 1)
R 1)
R 1)
R 1)
R 1)
R 1)
R 1)
R 1)
1) Access via UART service and SPI possible. In case of hard reset the register is reset to the hard reset value.
Elmos Semiconductor AG reserves the right to change the detail specifications as may be required to permit improvements in the design of its products.
Elmos Semiconductor AG
Data Sheet
QM-No.: 25DS0046E.03
47/51