AS5050-EQFT Просмотр технического описания (PDF) - austriamicrosystems AG
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AS5050-EQFT Datasheet PDF : 22 Pages
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AS5050
Datasheet - Detailed Description
7.2.3 Write Data Package (Value Written to AS5050)
The write frame is compatible to the read frame and contains two additional bits, the don’t care and parity flag.
If the previous command was a write command a second package has to be transmitted.
Table 8. Write Package
Bit MSB 14 13 12 11 10 9 8 7 6 5 4 3
Data <13:0>
Bit
Description
Data
14-bit data to write to former selected address
PAR
Parity bit (EVEN)
2
1
LSB
Don’t care PAR
7.2.4 Register Block
Table 9. Register Block
Register
Bit
Mode
Power ON Reset (POR) Register - [0x3F22]
Reset Value
POR_OFF
8
R/W
0x00
Software Reset Register - [0x3C00]
software_reset
14
W
0x0
Clear Error Flag Register - [0x3380]
clr_error_flag
14
R
0x0
No Operation Register - [0x0000]
NOP
14
w
0x0
Automatic Gain Control (AGC) Register - [0x03FF8]
AGC
6
R/W
0x20
Angular Data - [0x3FFF]
Angle Value
10
R
0x000
Alarm LO
1
R
0
Alarm HI
1
R
0
break_offset_loop
1
R/W
0
interrupt_mode
1
R/W
0
Bit
Description
<7:0>
The POR cell is deactivated when the value 0x5A is
written to this register (30µA reduction of current
consumption)
<13:0> Refer to SOFTWARE RESET Command on page 12
<13:0> Refer to CLEAR ERROR FLAG Command on page 11
<13:0> Refer to NOP Command on page 13
<5:0>
Automatic gain control:
low values = strong magnetic field
high values = weak magnetic field
<9:0>
<12>
<13>
<1>
<0>
Measured angular value, 10-bit
Alarm bit indicating a too low magnetic field, active
HIGH1
Alarm bit indicating a too high magnetic field, active
HIGH1
Breaks the offset compensation loop to use the offset
registers in a static mode
Interrupt gate mode
0 = mode 0
1 = mode1
1. Both bits High: Alarm LO = Alarm Hi = 1 indicate a major system error (DAC overflow, CORDIC overflow or Hall current error).
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Revision 1.12
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