E981.03 Datasheet, PDF (27/51 Pages) ELMOS Semiconductor AG – Autonomous MAC and individual physical address

KNX/ EIB TRANSCEIVER
PRODUCTION DATA - JAN 15, 2015
E981.03
Service Name
UART control field
Hex Bin
Remarks / Description
followed by
76543210
L_PollData.request
0xF0
E981.03 is Poll_Master:
uploaded L_PollData.re-
1111 0000 ^{quest telegram}
a data frame (L_PollData.
request)
Each complete received
byte of the frame will be
transmitted. (End of Frame
indication will be a time gap
above
frame
tle_{UnARgT,ItBhG,RiXs}
=
7
2.5ms.)
byte.
The
E981.03 is Poll_Slave:
write host to UART service
a Poll_Master can also be a U_PollingState with the cor-
Poll_Slave
responding data
U_ReadReg.response
0xF1
1111 0001
answer of U_ReadReg.re-
quest
D7 D6 D5 D4 D3 D2 D1 D0
U_ProductID.response
0xFE
1111 1110
answer of
U_ProductID.request
I7 I6 I5 I4 I3 I2 I1 I0
State.response
State.indication
0x_7
and
0x_F
abcd e111
a: [SC]
b: [RE]
c: [TE]
d: [PE]
e: [TW]
answer of
- U_State.request
- Indication of any state
chance:
[1] activation
[0] deactivation
see table below
1) note: all acknowledge frames are transmitted to the host in Bus Monitor Mode only
2) each L_Data telegram is transmitted completely to the host controller.
3) Each correctly received byte is immediately transferred to the host processor.
Table 6. E981.03 State Indication
Name
Bit is set in case of
SC:slave collision
- an other polling slave uses same slot (and has higher "priority")
RE: receiver error
- check-sum error in uploaded telegram
- parity error on UART
- frame error on UART (stop bit wrong)
- timeout violation between received service bytes
TE: transmitter error
- KNX transmitter sends "0", KNX receiver receives "1"
PE: protocol error
- illegal control byte in a service of telegram upload
- transmit telegram buffer overrun (upload during telegram transmission on KNX
bus)
- U_L_DataContinue service with index 0 or greater than 263
TW: temperature warning - temperature monitor signals too high temperature
7.3 SPI Logical Layer
Several bytes transferred subsequently during active
chip select form a SPI access. The first byte of a SPI ac-
cess is the command byte. It contains the following in-
formation:
1. distinction between read and write
2. decision whether to transmit a xor check-sum or
3. read accesses information about short or long access
4. upper part of address
If the XOR bit in the command byte is set a check-sum is
calculated over the bytes of the access and transferred
as last byte in master --> slave and slave --> master di-
rections. Thus both master and slave have information
about potentially incorrect transfer of command, ad-
dress and data bytes.
In short form of read access the inter byte gap has to
be regarded between byte 2 (address) and byte 3 (data).
Otherwise the transmitted byte may not be correct.
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
27/51