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Elmos Semiconductor AG

Data Sheet

QM-No.: 25DS0046E.03

PRODUCTION DATA - JAN 15, 2015

Elmos Semiconductor AG reserves the right to change the detail specifications as may be required to permit improvements in the design of its products.

KNX/ EIB TRANSCEIVER

E981.03

Register Name

Address

Description

KNX_ADR_STAT

0x216

status of the address

KNX_ADR_HIGH

0x108

KNX subnet adress high byte

KNX_ADR_LOW

0x109

KNX subnet adress low byte

Register Name

Address

Description

MAX_RST_CNT

0x217

number of retries in case of not acknowledge and busy

KNX_TR_BUF_STAT 0x215

status of the transmit telegram buffer

KNX_TX_LEN1

0x218

KNX_TX_LEN0

0x219

KNX_TR_BUF

0x000 …

0x107

264 Byte transmit buffer

KNX_RC_BUF

0x1C0…

0x1FF

64 Byte receiving frame buffer

Table 38. KNX address register

Table 40. Telegram transmission register

KNX_ADR_STAT

MSB

LSB

content

-

-

-

-

-

-

-

VALID

hard reset value

0

0

0

0

0

0

0

0

soft reset value

-

-

-

-

-

-

-

0

access

R

R

R

R

R

R

R

bit description

VALID :

"1": the stored address is valid

"0": the stored address is invalid

the bit is set by the host by writing to the register or by using U_SetAddress service re-

quest

it is reset. If the Address is configured by SPI the User have to set this bit too.

- by the host by writing to the register and

- during soft reset

Table 39. Status of the KNX address

back to Table 8 Register Table

1) The length of the frame gives the number of bytes stored in the frame transmit buffer including all frame overhead.

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.

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.

MAX_RST_CNT

MSB

LSB

content

-

BUSY2

BUSY1

BUSY0

-

NACK2

NACK1

NACK0

hard reset value

0

0

1

1

0

0

1

1

soft reset value

-

0

1

1

-

0

1

1

access

R

R

bit description

ACK : number of retries in case of not acknowledge (either NACK on no ack frame)

BUSY : number of retries in case of busy (BUSY or simultaneously BUSY and NACK)

Table 41. MAX_RST_CNT

back to Table 8 Register Table