E981.03A38HB ELMOS Semiconductor, E981.03A38HB Datasheet - Page 39

• 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

Table 32. Set up the maximum bus current slope
1) Access via UART service and SPI possible. For write access read the remarks of every bit carefully. In case of hard or soft reset the
Table 33. Bus current slope selection values
Table 34. Clock registersSet up the maximum bus current slope
Table 35. Host clock control register
1) For write access read the remarks of every bit carefully. In case of soft and hard reset the state machine writes mentioned values.
Table 36. Clock divider register (low part)
1) Access via UART service and SPI possible. For write access read the remarks of every bit carefully. In case of hard or soft reset the
ELMOS Semiconductor AG reserves the right to change the detail specifications as may be required to permit improvements in the design of its products.
CURRENT_SLOPE
content
hard reset value
soft reset value
access
bit description
SL1
0
0
1
1
Register Name
CLK_CTRL
CLK_FAC0
CLK_FAC1
CLK_CTRL
content
hard reset value
soft reset value
access
bit description
CLK_FAC0
content
hard reset value
soft reset value
access
register is reset to the hard reset value or soft reset value respectively.
KNX/ EIB TRANSCEIVER
PRODUCTION DATA - JUL 2, 2012
ELMOS Semiconductor AG
register is reset to the hard reset value or soft reset value respectively.
SL0
0
1
0
1
Slope limitation mode, mA/ms
0.25
0.5 (default)
1.25
2.5
MSB
-
0
R
see following table for SL values.
MSB
-
0
R
EXT_Q :
„1“: XTAL is used as clock input from external clock source, EXTAL is left open and internal
capacitors are disconnected
„0“: a quartz is connected to XTAL and EXTAL
ENQ :
„1“: crystal or clock enabled
„0“: crystal or clock disabled and XTAL grounded useful e.g. for analog mode
MSB
F7
0
0
R/W
Address
0x209
0x20A
0x20B
1)
-
-
-
0
-
R
-
0
-
R
F6
0
0
R/W
Description
host clock control register
lower 8 bit of the clock divider register
upper 8 bit of the clock divider register
1)
-
0
-
R
F5
1
1
R/W
-
0
-
R
1)
Data Sheet
39/51
-
0
-
R
F4
1
1
R/W
-
0
-
R
1)
-
0
-
R
F3
0
0
R/W
-
0
-
R
1)
EXT_Q
0
0
R/W
F2
0
0
R/W
-
0
-
R
back to
back to
back to
1)
1)
QM-No.: 25DS0046E.01
-
0
-
R
F1
0
0
R/W
SL1
0
0
R/W
Table 8 Register Table
Table 8 Register Table
Table 8 Register Table
1)
1)
E981.03
LSB
SL0
1
1
R/W
LSB
ENQ
1
1
R/W
LSB
F0
0
0
R/W
1)
1)
1)