ams Datasheet Page 19
[v2-06] 2014-Oct-14 Document Feedback
AS5055A − Registers
The on-chip registers are shown in Figure 22.
Figure 22:
Registers
POR OFF (0x3F22)
Writing the value 0x5A to the POR OFF Register (0x3F22)
deactivates the POR cell and reduces the current consumption
in low power mode (I
OFF
).
Software Reset (0x3C00)
Writing to the Software Reset Register initiates a Software
Reset. With the RES SPI bit of the Data Package set to 1 it is
possible to reset the SPI registers. After a software reset a new
angle conversion is started; this is needed to set the AS5055A
into an initial state. This angle is not readable by the
microcontroller.
The AS5055A is ready as soon as INT/ is driven low or a minimum
time (t
readout
) has elapsed.
Figure 23:
Software Reset Command
Name Address Bits Mod Default Description
POR OFF 0x3F22 7:0 R/W 0x0000 Power On Reset OFF
Software Reset 0x3C00 13:0 W 0x0000 Software Reset
Master Reset 0x33A5 13:0 W 0x0000 Master Reset
Clear EF 0x3380 13:0 R 0x0000 Clear Error Flag
NOP 0x0000 13:0 W 0x0000 No Operation
AGC 0x3FF8 5:0 R/W 0x0020 Automatic Gain Control
Angular Data 0x3FFF 13:0 R 0x0000 Measured Angle
Error Status 0x335A 13:0 R 0x0000 Error Status Register
System Config 0x3F20 9:13 R/W 0x000 System Configuration Register 1
Bit 1514131211109876543 2 1 0
Content011 11000000000 0PAR
