E981.03 Datasheet, PDF (43/51 Pages) ELMOS Semiconductor AG – Autonomous MAC and individual physical address

KNX/ EIB TRANSCEIVER
PRODUCTION DATA - JAN 15, 2015
E981.03
Table 47. Acknowledge information used by E981.03 for previous received telegram
back to Table 8 Register Table
ACK_KNXIC
MSB
LSB
content
-
-
-
-
-
NACK BUSY ADR
hard reset value 0
0
0
0
0
0
0
0
soft reset value -
-
-
-
-
-
-
-
access
R
R
R
R
R
R ¹⁾
R ¹⁾
R ¹⁾
bit description
NACK : not acknowledge flag
BUSY : busy flag
ADR : addressed flag
all flags are reset by the E981.03 at the beginning of a received frame.
1) Access via UART service and SPI possible. In case of hard reset the register is reset to the hard reset value.
POLLconf
Register POLL_CONF is completely handled by E981.03 when using host UART interface for communication. When
using host SPI interface the host has to handle POLL_CONF register itself.
Table 48. Polling slave register
Register Name
POLL_CONF
POLL_ADR_HIGH
POLL_ADR_LOW
POLL_SLOT
POLL_DATA
Address
0x21B
0x10A
0x10B
0x10C
0x10D
Description
status of a polling slave
high byte
low byte
polling slot
polling data
Table 49. Status of a polling slave
back to Table 8 Register Table
POLL_CONF
content
hard reset value
soft reset value
access
bit description
MSB
LSB
-
-
-
-
-
-
-
VALID
0
0
0
0
0
0
0
0
-
-
-
-
-
-
-
0
R
R
R
R
R
R
R
R/W ¹⁾
VALID :
"1": the data in the polling slave RAM area is valid for transmission
"0": the data in the polling slave RAM area is invalid
This bit is set by either the U_PollingState UART service request or direct writing to the
register by the host. If the configuration is don by SPI the User have to set this bit too.
It is reset by the E981.03 at the begin of a L_PollData.request frame reception on KNX bus
(KNX control field 0xF0 was received).
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 50. UART registers
Register Name
UART_CTRL
UART_STAT
Address
0x208
0x2A0
Description
UART control register
UART status register
The UART_CTRL register is used to control properties of the UART by host processor software. It is not modified by
the E981.03. The UART_STAT register is used to signal UART state to the host processor software. The host is not
allowed to modify the UART_STAT register.
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
43/51