E981.03 Datasheet, PDF(30/51 Page) ELMOS Semiconductor AG – Autonomous MAC and individual physical address

English

English German Russian Spanish Italian Polish Chinese Japanese Korean French Portuguese	Language :

E981.03 Datasheet, PDF (30/51 Pages) ELMOS Semiconductor AG – Autonomous MAC and individual physical address

◁

KNX/ EIB TRANSCEIVER

PRODUCTION DATA - JAN 15, 2015

E981.03

VST

V20

VCC

VIO

VBUSP,mean

VTemp

VBUS,current

INTERNAL

RAM

ACLK

0x397

ADC_VSTRES

0x398

ADC_V20RES

0x399

ADC_VCCRES

0x39A

ADC_VIORES

0x39D

ADC_VBUSP_MEAN

0x39E

ADC_TEMPRES

0x3B1

BUS_CURR_STAT

shift pattern

Figure 14. Digital Monitoring Functions

For measurement reasons the voltages are scaled to low

voltage domain V33I. The scaled voltages are converted

by the on chip ADC. For scaling factor look at chapter

Electrical Functions section Monitoring Functions. The

conversion results can be read by access to the result

registers. The VBUSP is an average value (tVBUSP(AV) = 5 ms).

ADC control cycle consists of two conversion cycles. The

bus voltage is converted in the first conversion cycle of

every control cycle. All other analog channels are con-

verted in the second slot of the control cycle. The result-

ing conversion rate is approximately

â¢ 70 k samples for bus voltage

â¢ 10 .. 20 k samples for all other sources

Note: From VST supervision an active SAVE_N signal is gener-

ated in case of falling supply voltages. This allows the host pro-

cessor to stop the application program and to save its data be-

fore the reset pin RESET_N becomes active.

ductor AG

1/1

PRELIMINARY INFORMATION Jan. 2012

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

30/51

▷