HAL810 Datasheet, PDF (28/30 Pages) Micronas – Programmable Linear Hall-Effect Sensor

HAL 810
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’s-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
MIN-DUTY
MAX-DUTY
DCOQ
Code
1
2
3
DCSENSITIVITY 4
Data Bits Format
Customer
10
binary
read/write/program
11
binary
read/write/program
11
two’s-compl. read/write/program
binary
14
signed binary read/write/program
MODE
LOCKR
5
6
6
1
binary
binary
read/write/program
lock
ADC-READOUT 7
14
TC
11
6
two’s-compl. read
binary
signed binary read/write/program
TCSQ
12
5
binary
read/write/program
Remark
Minimum Duty Cycle
Maximum Duty Cycle
Output Duty Cycle at zero
ADC-READOUT
Increase of Output Duty
Cycle with ADC-READOUT
Range and filter settings
Lock Bit for customer
registers
Output of A/D converter
(internal magnetic signal)
Temperature compensation
coefficient
Temperature compensation
coefficient
Table 5–4: Micronas registers (read only for customers)
Register
OFFSET
FOSCAD
SPECIAL
Code
8
9
13
Data Bits Format
Remark
5
two’s-compl. binary ADC offset adjustment
5
binary
Oscillator frequency adjustment
8
special settings
28
Feb. 6, 2009; DSH000034_003EN
Micronas