E981.03 Datasheet, PDF (29/51 Pages) ELMOS Semiconductor AG – Autonomous MAC and individual physical address

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PRODUCTION DATA - JAN 15, 2015
7.4 SPI Timing
E981.03
Figure 13. SPI timing
8 Monitoring Functions
For measurement reasons the voltages are scaled to low voltage domain V33I. For scaling factors please read Table
Electrical Characteristics section Monitoring Functions.
For error calculations refer following tolerances: Divider, ADC, V33I Supply (tolerance depend on configuration and
Mode).
8.1 Analog Monitoring Functions
As described in section 5.5 AOUT the AOUT is an analog monitoring pin with a high impedance. Possible sources are:
• Temperature voltage
• Band gap voltage
• Bus voltage
8.2 Digital Monitoring Functions
ADC unit converts a configurable count of analog signals
to 8 bit resolution digital numbers. The signal conversion
time of a selected channel is typical 5 µs at a clock fre-
quency of 4 MHz. The input channels are converted in a
continuously running conversion cycle. The ADC embed-
ded system consists of:
8 bit SAR ADC Core
• high and low level reference generator
• conversion channel mux with input buffer
• channel sequence control unit
• result registers
In E981.03 ADC converts
• bus voltage VBUSP
• VST
• V20
• VCC
• VIO
• temperature (for details read chapter 8.3 Tempera-
ture Supervision)
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
29/51