E981.03 Datasheet, PDF (35/51 Pages) ELMOS Semiconductor AG – Autonomous MAC and individual physical address

KNX/ EIB TRANSCEIVER
PRODUCTION DATA - JAN 15, 2015
E981.03
Table 17. Communication mode
back to Table 8 Register Table
CMODE
MSB
LSB
content
-
-
-
-
-
CM2
CM1
CM0
hard reset value 0
0
0
0
0
1
0
0
soft reset value -
-
-
-
-
1
0
0
access
R ¹⁾
R ¹⁾
R ¹⁾
R ¹⁾
R ¹⁾
R/W ¹⁾
R/W ¹⁾
R/W ¹⁾
1) Access via UART service and SPI possible. In case of hard or soft reset the register is reset to the hard reset value or soft reset
value respectively.
Table 18. E981.03 mode register values
Mode
hard reset
start-up
soft reset
Analog
Priority
1
3
4
5
Register
CMODE
don't care
don't care
don't care
don't care
Normal
5
0x04
Bus monitor 5
Busy
4
0x05
0x06
Register
DEVMODE
0x00
0x01
0x02
0x03
0x04
0x05
0x06
Remarks
reset state is active if internal power supply is down
0x04 is the reset value of register CMODE
Normal Mode is active in case of CMODE values that
do not define an other communication mode.
Table 19. IC product ID (read only)
back to Table 8 Register Table
PROD_ID
MSB
LSB
content
ID7
ID6
ID5
ID4
ID3
ID2
ID1
ID0
hard reset value 0
0
0
0
0
1
0
0
soft reset value
never changed
access
R ¹⁾
R ¹⁾
R ¹⁾
R ¹⁾
R ¹⁾
R ¹⁾
R ¹⁾
R ¹⁾
bit description product ID will be changed in case of feature change.
1) Access via UART service and SPI possible. In case of hard reset the register is reset to the hard reset value.
The state of several pins are accessible via register address PINS. The read value changes with pin voltages with-
out respect to IC state.
Table 20. Mode control and baud rate select pin values
back to Table 8 Register Table
PINS
content
access
bit description
MSB
SETVCC
R
SETVCC
BS1
BS0
ALARM
WK
RESET
SAVE
LSB
BS1
BS0
ALARM 0
WK
RESET SAVE
R
R
R
R
R
R
R
: this bits reflects the value of the SETVCC pin information
: this bits reflects the value of the BS1 pin
: this bits reflects the value of the BS0 pin
: this bits reflects the value of the ALARM condition (SETVCC=V_SETVCC,ALARM)
: this bits reflects the value of the WK pin
: this bits reflects the value of the RESET pin
: this bits reflects the value of the SAVE pin
1) Access via UART service and SPI possible.
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
35/51