Data Sheet

14

1.0

2018-02

TLE4959C FX Flexible Transmission Speed Sensor

EEPROM Functional Description

4.2

EEPROM Description

Several options of TLE4959C FX can be programmed via an EEPROM to optimize the sensor algorithm to the

individual target wheel and application requirements. The EEPROM memory is organized in 2 customer lines.

Each line is composed of 16 data bits and additional 6 bits for error detection and correction, based on ECC

(Error Correction Code). For more detailed information about EEPROM access and programming an additional

document is available on request.

Table 9

EEPROM Address 0x0

15

14

13

12

11

10

987

6543

210

Table 10

Functional Description Address 0x0

Field

Bit

Type Description

TLE4959C FX

Not used

15

r

Always read as “0”

0

Not used

14

rw

To be set to “0”

0

HIGH_SPEED

13

rw

0 = Enabled motion detection

1 = According selected protocol when above

4.3kHz

0

Not used

12

rw

To be set to “0”

0

STAND_EN

11

rw

0=disable stand-still pulse

1=enable stand-still pulse

Stand still pulse is provided, if enabled, only

if PW_CHIOICE=00

0

Not used

10..0 rw

To be set to “00000000000”

00000000000

Table 11

EEPROM Address 0x1

15

14

13

12

11

10

987

6543

210

Table 12

Functional Description Address 0x1

Field

Bit

Type Description

TLE4959C FX

Not used

15:14 rw

To be set to “01”

01

PW_CHOICE

13:12 rw

Choice of PWM protocol for direction

detection.

00 = Option 1

01 = Option 2

10 = Option 3

11 = Option 4

11

FORWARD_DEF

11

rw

0 = None invertion of forward definition

1 = Invertion of forward definition

0

EDGE_POLAR

10

rw

0 = None invertion

1 = Invertion

0

HYST_ADAPT

9

rw

0 = 25%

1 = 12.5%

1