1. KM6551 - Terminal module for wireless data exchange
  2. Access from the user program
  3. Register overview

Register overview

These registers are used to parameterize the terminal module. They can be read or written by means of the register communication.

Register no.

Comment

Default value

R/W

Memory

R0

reserved

0x0000

0dec

-

-

...

...

...

...

...

...

R7

reserved

0x0000

0dec

-

-

R8

Terminal type

0x1997

6551dec

R

ROM

R9

Firmware version

e.g. 0x3144

e.g. 1DASCI

R

ROM

R10

Multiplex shift register

0x0118

280dec

R

ROM

R11

Signal channels

0x0218

280dec

R

ROM

R12

minimum data length of a channel

0x0098

152dec

R

ROM

R13

Data structure

0x0000

0dec

R

ROM

R14

reserved

0x0000

0dec

-

-

R15

Alignment register

typically 0x7F80

typically 32640dec

R/W

RAM

R16

DIP switch setting

e.g. 0x0000

e.g. 0dec

R

RAM

R17

internal use

typically 0x0000

typically 0dec

R

EEPROM

R18

reserved

0x0000

0dec

R

EEPROM

R19

reserved

0x0000

0dec

R

EEPROM

R20

reserved for internal use

0x0001

1dec

R

EEPROM

R21

reserved for internal use

0x0500

1280dec

R

EEPROM

R22

reserved for internal use

0x0000

0dec

R

EEPROM

R23

reserved for internal use

0x00FF

255dec

R

EEPROM

R24

reserved

0x0000

0dec

-

-

...

...

...

...

...

...

R30

reserved

0x0000

0dec

-

-

R31

Code word register

0x0000

0dec

R/W

EEPROM

R32

IEEE 802.15.4 channel

0x0005

5dec

R/W

EEPROM

R33

Control register for R32

0x0000

0dec

R

RAM

R34

reserved

0x0000

0dec

R/W

EEPROM

R35

reserved

0x0000

0dec

R/W

EEPROM

R36

reserved

0x0000

0dec

R/W

EEPROM

R37

reserved

0x0000

0dec

R/W

EEPROM

R38

Watchdog for slave mode

0x0014

20dec

R/W

EEPROM

R39

Broadcast mode

0x0000

0dec

R/W

EEPROM

R40

Scan register

-

-

R

RAM

R41

Network ID

0x0000

0dec

R/W

RAM

R42

Wrong channel (internal)

-

-

R

EEPROM

R43

reserved

0x0000

0dec

R

EEPROM

R44

Reset counter (internal)

-

-

R

EEPROM

R45

reserved

0x0000

0dec

R

EEPROM

R46

Attenuation of the transmission power

0x0000

0dec

R/W

EEPROM

R47

reserved

0x0000

0dec

R

EEPROM

...

...

...

...

...

...

R63

reserved

0x0000

0dec

R

EEPROM