KMA200 datasheet(22/31 Pages) PHILIPS

22 / 31 page

9397 750 11399

Product data sheet

Rev. 05 — 16 August 2005

22 of 31

Philips Semiconductors

KMA200

Programmable angle sensor

10.3.4 Write RAM (0nh), read RAM (1nh)

To write data to the RAM the command byte 0nh (n is the address of the data) followed by

the 16-bit data has to be send. To read data from the RAM, the command byte 1nh has to

be send. If CS is activated again, the RAM contents at the speciﬁed address is clocked

out. Note that at power-on addresses 00h to 0Fh are read from the EEPROM into the

RAM.

10.3.5 Calculate CRC16 and program EEPROM (30h)

To program the EEPROM, the conﬁguration data has to be written to the RAM addresses

00h to 0Eh. Afterwards, the command byte 30h has to be sent and the EEPROM

programming voltage has to be applied at the VDD pin. The KMA200 calculates the crc16

check sum and writes the RAM constants at addresses 00h to 0Fh to the EEPROM. This

command is only executed when the EP bit in the control information word is 0 on

power-on. If the EP bit is 1, this command is ignored.

Table 9:

EEPROM content

Address

Name

Description

sensor_offset_1

dependent of individual production calibration results

sensor_offset_2

dependent of individual production calibration results

zero_angle

mechanical 0

° position relative to the zero point of the

sensor output; used for zero-angle calibration

default value: 0000h (0

°)

angular_range

deﬁnition of the angular input range that is mapped to the

whole analog output signal range

default value: 0000h (180

°)

αthresh

threshold for programmable output / mode 3

default value: int_CRC of the addresses 0, 1, 5, C, D and E

temp_vref, temp_offs

dependent of individual production calibration results

6Tshut(res), Twarn(res)

temperature warning and temperature shutdown level; used

for temperature supervision default value: FAF8h

(temperature shutdown at 200

°C, warning at 198 °C)

ctrl1

control information word 1; used for selection of various

operating modes default value: 4046h (output mode

standard + mode 1)

ctrl2

control information word 2; conﬁgures the diagnostic

functions default value: 0704h (temperature supervision is

on; input stage diagnosis is on; output stage diagnosis is off)

9V(CL)l, V(CL)u

clamping voltage levels of analog outputs

default value: 00FFh (clamping level “LOW” at 5 %VDD,

clamping level “HIGH” at 95 %VDD)

id1

sensor identiﬁer 1; this data is not evaluated by the KMA200

and is used for sensor identiﬁcation

id2

sensor identiﬁer 2; this data is not evaluated by the KMA200

and is used for sensor identiﬁcation

anom, tc_anom

dependent of individual production calibration results

tc_offset_1

dependent of individual production calibration results

tc_offset_2

dependent of individual production calibration results

CRC16

dependent of individual programming

KMA200 Datasheet(PDF) 22 Page - NXP Semiconductors

KMA200 Datasheet(HTML) 22 Page - NXP Semiconductors

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

Datasheet Download

Link URL