E981.03A38HB ELMOS Semiconductor, E981.03A38HB Datasheet - Page 23

• Manufacturer Part Number: E981.03A38HB
• Description: Interface - Specialized KNX/EIB transceiver
• Manufacturer: ELMOS Semiconductor

Specifications of E981.03A38HB

• Rohs: yes
• Product Type: KNX/EIB Transceiver
• Operating Supply Voltage: 3.3 V
• Supply Current: 10 mA
• Maximum Power Dissipation: 1 W
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-32
• Minimum Operating Temperature: - 25 C

6.9 Addressed Mode
Each KNX / EIB device has it's own unique individual ad-
dress in a network. The E981.03 can be configured with
an individual node (physical) address. In this mode, the
processor load will be reduced by the autonomous KNX
protocol handling.
Activation
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Deactivation
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6.10 Trigger Functionality
Activation
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Deactivation
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Properties
WK pin is a tristate pin (tristate push pull) the E981.03
forces in Reset / Power up sequence WK to ground level.
E981.03 applies high level at pin WK after either
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6.11 Alarm Functionality
During any Communication Mode (but not in Analog
Mode) an alarm sequence can be used to signal improp-
er node state to the system via KNX / EIB bus by send-
ing an alarm telegram.
Activation
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ELMOS Semiconductor AG reserves the right to change the detail specifications as may be required to permit improvements in the design of its products.
KNX/ EIB TRANSCEIVER
PRODUCTION DATA - JUL 2, 2012
ELMOS Semiconductor AG
after a complete address upload
activated VALID bit in KNX_ADR_STAT register
Reset / Power up Sequence
deactivated VALID bit in KNX_ADR_STAT register
after upload of a trigger frame to E981.03 and up-
load of a trigger telegram mask to E981.03
entering busy or Normal Mode.
deactivated BUF bit in TRIGGER register.
a trigger telegram was received correctly or
a broadcast telegram was received or
an individually addressed telegram was received
after a complete alarm telegram upload and alarm
condition (SETVCC pin open or forced to V
V
VSETVCC,ALARM
) is pending
V33I
/2 =
Data Sheet
23/51
Properties
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The received telegram can be read from telegram re-
ceive buffer until the next telegram arrives on the KNX/
EIB bus. Thus the host processor can get information
about trigger telegram contents after restarting the
node.
Attention: To be able to get the trigger message in all
conditions use the communication interface UART with
115.2KBd or SPI.
Trigger Function is not available in Bus Monitoring
Mode and Analog Mode.
Deactivation
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Properties
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•
The KNX/ EIB to UART receive path remains active dur-
ing alarm sequence.
incoming Frames will be analyzed
frames with a physical address will be answered
with an acknowledge automatically, if the stored
address matched
all frames with a group address will be answered
automatically with an acknowledge.
the host can suppress an automatic acknowledge
generation
with address equals node address (optional if con-
figured)
the generated trigger pulse has a length of t
deactivated BUF bit in ALARM_STAT register
an alarm telegram is send on KNX bus
active RESET will be delay transmission, both alarm
telegram buffer and alarm state register are not
changed
QM-No.: 25DS0046E.01
E981.03
TRIGGER,pw.