Datasheet

993
SAM4E [DATASHEET]
Atmel-11157D-ATARM-SAM4E16-SAM4E8-Datasheet_12-Jun-14
39.7.4 TC Stepper Motor Mode Register
Name: TC_SMMRx [x=0..2]
Address: 0x40090008 (0)[0], 0x40090048 (0)[1], 0x40090088 (0)[2], 0x40094008 (1)[0], 0x40094048 (1)[1],
0x40094088 (1)[2], 0x40098008 (2)[0], 0x40098048 (2)[1], 0x40098088 (2)[2]
Access: Read/Write
This register can only be written if the WPEN bit is cleared in the TC Write Protection Mode Register.
• GCEN: Gray Count Enable
0: TIOAx [x=0..2] and TIOBx [x=0..2] are driven by internal counter of channel x.
1: TIOAx [x=0..2] and TIOBx [x=0..2] are driven by a 2-bit gray counter.
• DOWN: Down Count
0: Up counter.
1: Down counter.
31 30 29 28 27 26 25 24
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23 22 21 20 19 18 17 16
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15 14 13 12 11 10 9 8
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76543210
––––––DOWNGCEN