AS5046 12-BIT PROGRAMMABLE MAGNETIC ROTARY ENCODER
Demoboard Operation Manual
Revision 1.1, 3-Jun-08 www.austriamicrosystems.com
Page 7 of 21
Green: ~45…75mT
Yellow: ~ 25…45mT or ~75…135mT
Red: ~<25mT or >~135mT
For details on the magnetic input field ranges please refer to the data sheet section “Z-Axis Range Indication”.
State Indicators:
Offset Comp Finish: indicates the finished offset compensation. Data is valid, when this bit = 1.
CORDIC Overflow: Internal DSP error. Data is invalid when this bit = 1.
Linearity Alarm: Internal DSP warning. The accuracy will be reduced when this bit = 1.
Magnitude Increment, Magnitude Decrement: These bits are set when the magnetic field becomes stronger
(MagInc = 1) or weaker (MagDec = 1), e.g. when the magnet is moved away or towards the chip. These signals
can be used to add a pushbutton function to the AS5046. When both bits are set, they indicate that the magnetic
field strength is out of the recommended range of 45 - 75mT (>75mT to close, <45mT to far). The AS5046 will still
continue to operate, even when both bits are set, but the accuracy may be out of spec.
Even Parity: Parity bit for transmission error detection.
Encoder: Onboard / External:
This field selects whether the onboard AS5046 (on the demo board) or an external AS5046 (connected to the 8-pin
connector at the left side of the demo board) is selected. Note that permanent write (programming) is only enabled
for the external Encoder.
USB connection status:
Displays the status of the USB connection. The connection is not polled permanently by the PC operating system,
so it may take a few seconds before the actual status is updated. If the status displays "USB: no connection", try to
unplug and re-connect the USB cable. See also section 7.2 “Suggested Sequence of Connecting and
Disconnecting”.
Figure 6:
USB connection status
Sub-Window:
By double-clicking the angular gauge, a separate, resizable window appears, showing the gauge and the
incremental outputs in detail (see Figure 7).
Figure 7:
SSI-tab sub-window
