HAL805-1 Datasheet, PDF (28/30 Pages) Micronas – Programmable Linear Hall-Effect Sensor

HAL 805
DATA SHEET
5.4. Number Formats
Binary number:
The most significant bit is given as first, the least sig-
nificant bit as last digit.
Example: 101001 represents 41 decimal.
Signed binary number:
The first digit represents the sign of the following
binary number (1 for negative, 0 for positive sign).
Example: 0101001 represents +41 decimal
1101001 represents −41 decimal
Two-complementary number:
The first digit of positive numbers is “0”, the rest of the
number is a binary number. Negative numbers start
with “1”. In order to calculate the absolute value of the
number, calculate the complement of the remaining
digits and add “1”.
Example: 0101001 represents +41 decimal
1010111 represents −41 decimal
Table 5–3: Available register addresses
Register
CLAMP-LOW
CLAMP-HIGH
VOQ
Code
1
2
3
Data
Bits
10
11
11
SENSITIVITY 4
14
MODE
5
6
LOCKR
6
1
ADC-READOUT 7
14
TC
11
6
TCSQ
12
5
DEACTIVATE 15
12
Format
Customer
binary
read/write/program
binary
read/write/program
two compl.
binary
read/write/program
signed binary read/write/program
binary
read/write/program
binary
lock
two compl.
binary
read
signed binary read/write/program
binary
read/write/program
binary
write
Remark
Low clamping voltage
High clamping voltage
Range and filter settings
Lock Bit
Deactivate the sensor
Micronas registers (read only for customers)
Register
OFFSET
FOSCAD
SPECIAL
Code
8
9
13
Data
Bits
5
5
8
Format
two compl. binary
binary
Remark
ADC offset adjustment
Oscillator frequency adjustment
special settings
28
Feb. 14, 2006; 6251-513-3DS
Micronas