Datasheet

SAM3X / SAM3A [DATASHEET]
Atmel-11057C-ATARM-SAM3X-SAM3A-Datasheet_23-Mar-15
902
• POSEN: Position Enabled
0: Disable position.
1: Enables the position measure on channel 0 and 1.
• SPEEDEN: Speed Enabled
0: Disabled.
1: Enables the speed measure on channel 0, the time base being provided by channel 2.
• QDTRANS: Quadrature Decoding Transparent
0: Full quadrature decoding logic is active (direction change detected).
1: Quadrature decoding logic is inactive (direction change inactive) but input filtering and edge detection are performed.
• EDGPHA: Edge on PHA Count Mode
0: Edges are detected on PHA only.
1: Edges are detected on both PHA and PHB.
• INVA: Inverted PHA
0: PHA (TIOA0) is directly driving the QDEC.
1: PHA is inverted before driving the QDEC.
• INVB: Inverted PHB
0: PHB (TIOB0) is directly driving the QDEC.
1: PHB is inverted before driving the QDEC.
• INVIDX: Inverted Index
0: IDX (TIOA1) is directly driving the QDEC.
1: IDX is inverted before driving the QDEC.
• SWAP: Swap PHA and PHB
0: No swap between PHA and PHB.
1: Swap PHA and PHB internally, prior to driving the QDEC.
• IDXPHB: Index Pin is PHB Pin
0: IDX pin of the rotary sensor must drive TIOA1.
1: IDX pin of the rotary sensor must drive TIOB0.
• MAXFILT: Maximum Filter
1–63: Defines the filtering capabilities.
Pulses with a period shorter than MAXFILT+1 peripheral clock cycles are discarded.