Datasheet

TMC8462 Datasheet • Document Revision V1.5 • 2019-June-21
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7.3.4 Step and Direction Signal Generator
7.3.4.1 Register 18 – SD_CH0_STEPRATE
Bit Description ECAT PDI Range [Unit]
31:0 Signed accumulation constant c for SD_CH0.
This accumulation constant determines the
time tSTEP between two successive steps and
thereby the step frequency.
The Sign (MSB) of this accumulation constant is
used for the direction signal output (D0, D0n).
The accumulation constant c is 2th comple-
ment.
(see also Section 7.14)
-/w -/w 0. . . +(2
32
) − 1
Table 143: MFC IO Register 18 – SD_CH0_STEPRATE
7.3.4.2 Register 19 – SD_CH1_STEPRATE
Bit Description ECAT PDI Range [Unit]
31:0 Signed accumulation constant c for SD_CH1.
This accumulation constant determines the
time tSTEP between two successive steps and
thereby the step frequency.
The Sign (MSB) of this accumulation constant is
used for the direction signal output (D1, D1n).
The accumulation constant c is 2th comple-
ment.
(see also Section 7.14)
-/w -/w 0. . . +(2
32
) − 1
Table 144: MFC IO Register 19 – SD_CH1_STEPRATE
7.3.4.3 Register 20 – SD_CH2_STEPRATE
Bit Description ECAT PDI Range [Unit]
31:0 Signed accumulation constant c for SD_CH2.
This accumulation constant determines the
time tSTEP between two successive steps and
thereby the step frequency.
The Sign (MSB) of this accumulation constant is
used for the direction signal output (D2, D2n).
The accumulation constant c is 2th comple-
ment.
(see also Section 7.14)
-/w -/w 0. . . +(2
32
) − 1
Table 145: MFC IO Register 20 – SD_CH2_STEPRATE
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