E981.03 Datasheet, PDF (45/51 Pages) ELMOS Semiconductor AG – Autonomous MAC and individual physical address

KNX/ EIB TRANSCEIVER
PRODUCTION DATA - JAN 15, 2015
E981.03
Table 54. Previous received byte
back to Table 8 Register Table
UART_RX
content
hard reset value
soft reset value
access
MSB
D7
0
R ¹⁾
LSB
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
0
0
0
-(not reset)
R ¹⁾
R ¹⁾
R ¹⁾
R ¹⁾
R ¹⁾
R ¹⁾
R ¹⁾
1) Access via UART service and SPI possible. In case of hard reset the register is reset to the hard reset value.
UART Byte Transmitter
TXD idle-level in any other mode but KNX Analog Mode is "1".
The UART transmitter has a baud rate deviation of less than 1% during byte frame transmission. Subsequent
bytes may be transmitted without a break.
Table 55. UART transmitter registers
Register Name
UART_TX
Address
0x2A4
Description
UART transmitter data register
Table 56. UART transmitter data register
back to Table 8 Register Table
UART_TX
content
hard reset value
soft reset value
access
MSB
D7
0
R ¹⁾
LSB
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
0
0
0
-(not reset)
R ¹⁾
R ¹⁾
R ¹⁾
R ¹⁾
R ¹⁾
R ¹⁾
R ¹⁾
1) Access via UART service and SPI possible. In case of hard reset the register is reset to the hard reset value.
Table 57. SPI registers
Register Name
SPI_CTRL
SPI_STAT
SPI_PINS
Address
0x205
0x310
0x206
Description
SPI control register
SPI status register
SPI pin access
Table 58. SPI control register
back to Table 8 Register Table
SPI_CTRL
MSB
LSB
content
-
-
-
-
-
-
ON1
ON0
hard reset value 0
0
0
0
0
0
1
1
soft reset value -
-
-
-
-
-
1
1
access
R
R
R
R
R
R
R/W ¹⁾
R/W ¹⁾
bit description
ON1 :
ON0 :
"-1" or "1-": the SPI is switched on
"00": the SPI is switched off
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 59. SPI status register
back to Table 8 Register Table
SPI_STAT
MSB
LSB
content
-
-
-
-
-
-
-
XERR
hard reset value 0
0
0
0
0
0
0
0
soft reset value
- (not reset)
access
R
R
R
R
R
R
R
R ¹⁾
bit description XERR : XOR error detected
1) Access via UART service and SPI possible. In case of hard reset the register is reset to the hard reset value.
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
45/51