2.12.6 sEEPromIDctrl eepID

The sEEPromIDctrl eepID variable contains the settings for the ID check. 18 IDs with up to 4 bytes together with a config variable and a global enable variable can be stored in this structure. See ID Check for a functional description, and ID Check for a hardware description.

Address

Name

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

0x0036

idEna

———

ID[4:0]

0x0037

data[0][0]

data0_byte0[7:0]

0x0038

data[0][1]

data0_byte1[7:0]

0x0039

data[0][2]

data0_byte2[7:0]

0x003A

data[0][3]

data0_byte3[7:0]

0x003B

config[0]

IDCE

———

IDBO[1:0]

IDL[1:0]

...

......

0x008C

data[17][0]

data17_byte0[7:0]

0x008D

data[17][1]

data17_byte1[7:0]

0x008E

data[17][2]

data17_byte2[7:0]

0x008F

data[17][3]

data17_byte3[7:0]

0x0090

config[17]

IDCE

———

IDBO[1:0]

IDL[1:0]

idEna

The idEna variable is used to activate the ID check and define the number of active IDs.

Address

Name

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

0x0036

idEna

———

ID[4:0]

Bits 7..5: Reserved Bits

These bits are reserved for future use and must be set to ‘0’.

Bits 4..0: ID[4:0] – Number of Enabled IDs

ID[4]

ID[3]

ID[2]

ID[1]

ID[0]

Description

0

0

0

0

0

ID check function disabled

0

0

0

0

1

ID check function enabled for ID 0 (all other IDs are disabled)

0

0

0

1

0

ID check function enabled for ID 0 to 1 (all other IDs are disabled)

0

0

0

1

1

ID check function enabled for ID 0 to 2 (all other IDs are disabled)

...

...

...

...

...

...

1

0

0

1

0

ID check function enabled for ID 0 to 17

1

0

0

1

1

Not applicable

...

...

...

...

...

...

1

1

1

1

1

Not applicable

data

The data variables store the IDs themselves with a length of 1, 2, 3 or 4 bytes. The IDs are stored MSB-first, starting with the data[x][0] variable (x = 0..17). Each ID can have a unique length.

Name

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

data[x][0]

data0_byte0[7:0]

data[x][1]

data0_byte1[7:0]

data[x][2]

data0_byte2[7:0]

data[x][3]

data0_byte3[7:0]

config

The config variable contains the configuration data of the corresponding ID.

Name

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

config[x]

IDCE

———

IDBO[1:0]

IDL[1:0]

Bit 7: IDCE – ID Check Execute

This bit must be set to ‘1’. If set to ‘0’, the hardware correlator omits the corresponding ID.

Bits 6..4: Reserved Bits

These bits are reserved for future use and must be set to ‘0’.

Bits 3..2: IDBO[1:0] – ID Byte Offset

IDBO[1]

IDBO[0]

Description

0

0

ID check starts with 1st byte in telegram payload

0

1

ID check starts with 2nd byte in telegram payload

1

0

ID check starts with 3rd byte in telegram payload

1

1

ID check starts with 4th byte in telegram payload

Bits 1..0:IDL[1:0] – ID Length

IDL[1]

IDL[0]

Description

0

0

ID length is 1 byte, data_byte0 is used only

0

1

ID length is 2 bytes, data_byte0 and data_byte1 are used only

1

0

ID length is 3 bytes, data_byte0 .. data_byte2 are used only

1

1

ID length is 4 bytes, data_byte0 .. data_byte3 are used