E981.03A38HB ELMOS Semiconductor, E981.03A38HB Datasheet - Page 34

• 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 11. Reset source
Table 12. Busy timeout register
Table 13. BUSY_REG
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 14. Timeout examples
Timebase is 4 ms per digit.
Table 15. Device mode registers
Register CMODE is used for IC control and is intended to be written by host controller. Register DEVMODE reflects
the state of the IC.
Table 16. Active device mode
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.
ELMOS Semiconductor AG reserves the right to change the detail specifications as may be required to permit improvements in the design of its products.
RES_SOURCE value
0x00
0x01
0x02
0x03
0x04
0x05
0x07
Register Name
BUSY_REG
BUSY_REG
content
hard reset value
soft reset value
access
BUSY_REG value
255
175
26 (default)
0
Register Name
DEVMODE
CMODE
PROD_ID
PINS
DEVMODE
content
hard reset value
soft reset value
access
bit description
KNX/ EIB TRANSCEIVER
PRODUCTION DATA - JUL 2, 2012
ELMOS Semiconductor AG
timeout value
1.02 s
0.7 s
0.1 s
0 s
MSB
T7
0
0
R/W
MSB
M7
0
0
R
This register holds the value of the currently active mode. This mode may differ from the
communication mode selected by the CMODE register for several reasons. Especially dur-
ing mode changes the DEVMODE register reflects the currently active mode.
Address
0x202
Address
0x300
0x200
0x371
0x306
reset source
start-up reset (this is the only reset source that corresponds to register hard reset values)
the previous reset was initiated by an externally driven active RESET
the previous reset was initiated by a Reset.request service
the previous reset was initiated by a write access to the RESET_CTRL register
E981.03 intern watchdog
the previous reset was initiated by a low VCC
E981.03 internal error
1)
1)
T6
0
0
R/W
M6
0
0
R
1)
Description
Busy Mode register
Description
active device mode
communication mode
IC product ID (read only)
mode control and baud rate select pin values
1)
T5
0
0
R/W
M5
0
0
R
1)
1)
Data Sheet
34/51
T4
1
1
R/W
M4
0
0
R
1)
1)
T3
1
1
R/W
M3
0
0
R
1)
1)
T2
0
0
R/W
M2
0
0
R
1)
back to
back to
1)
QM-No.: 25DS0046E.01
T1
1
1
R/W
M1
0
1
R
Table 8 Register Table
Table 8 Register Table
1)
1)
E981.03
LSB
T0
0
0
R/W
LSB
M0
0
0
R
1)
1)