E981.03A38HB ELMOS Semiconductor, E981.03A38HB Datasheet - Page 26

• 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

7.2 UART Service UART -> Host
Any service sent from E981.03 to host consists of one or more bytes. The first byte is the control field which identi-
fies UART service. The E981.03 can handle the following three different UART services:
•
•
•
Table 5. UART Service - E981.03 to Host
ELMOS Semiconductor AG reserves the right to change the detail specifications as may be required to permit improvements in the design of its products.
Service Name
acknowledge
(BUSY and NACK)
Reset.indication
L_Data.confirm
(negative)
acknowledge
(NACK)
L_Data telegram
(L_ExtData frame)
L_Data.confirm
(positive)
L_Data telegram
(L_Data frame)
acknowledge
(BUSY)
acknowledge
(ACK)
KNX/ EIB TRANSCEIVER
PRODUCTION DATA - JUL 2, 2012
ELMOS Semiconductor AG
KNX data link layer services are complete
immediate acknowledge service include information about sending state
UART control services are used to send requested information to the host controller or, in case of failures, a
state indication
Hex
0x00
0x03
0x0B
0x0C
0x10
0x14
0x18
0x1C
0x30
0x34
0x38
0x3C
0x8B
0x90
0x94
0x98
0x9C
0xB0
0xB4
0xB8
0xBC
0xC0
0xCC
UART control field
Bin
0000 0000
0000 0011 indicate a Reset of the
0000 1011
0000 1100
0001 0000
0001 0100
0001 1000
0001 1100
0011 0000
0011 0100
0011 1000
0011 1100
1000 1011
1001 0000
1001 0100
1001 1000
1001 1100
1011 0000
1011 0100
1011 1000
1011 1100
1100 0000
1100 1100
Data Sheet
26/51
Remarks / Description
the preceding data tele-
gram is negative and busy
acknowledged by a combi-
nation of receiving nodes.
E981.03
L_Data telegram negative
confirm:
the preceding data tel-
egram was either nega-
tive acknowledged (either
NACK or BUSY) by receiv-
ing node(s) or not acknowl-
edged at all.
the preceding data tele-
gram is negative acknowl-
edged by any of the receiv-
ing nodes.
First Byte (Control field of
an frame which is received
on KNX bus.
L_Data telegram positive
confirm:
the preceding data tel-
egram was positive ac-
knowledged (ACK) by the
receiving node
First Byte (Control field)
of an frame which is re-
ceived on KNX bus.
the preceding data tel-
egram is busy acknowl-
edged by any of the receiv-
ing nodes.
the preceding data tel-
egram is positive acknowl-
edged by all of the receiv-
ing nodes.
1)
1)
1)
3)
3)
1)
an extended data frame (L_
ExtData)
Each complete received
byte of the frame will be
transmitted. (End of Frame
indication will be a time gap
above t
frame length is between 2
and 264 byte.
a data frame (L_Data)
Each complete received
byte of the frame will be
transmitted. (End of Frame
indication will be a time gap
above t
frame length is between 2
and 64 byte.
7 6 5 4 3 2 1 0
QM-No.: 25DS0046E.01
UART,IBG,RX
UART,IBG,RX
followed by
= 2.5ms.) The
= 2.5ms.) The
E981.03