TMC8462 Datasheet • Document Revision V1.4 • 2018-May -09
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7.3.4.8 Register 25 – SD_CH1_STEPTARGET
Bit
Description
ECAT
PDI
Range [Unit]
31:0
Steps pulses (= distance) to be made for -/w
SD_CH1.
Can be overwritten at any time.
-/w
0. . . +(232) − 1
When zero, no more step pulses are generated
at output S1 or S1n,
Reading the register returns the remaining
number of step pulses to be generated.
Table 150: MFC IO Register 25 – SD_CH1_STEPTARGET
7.3.4.9 Register 26 – SD_CH2_STEPTARGET
Bit
Description
ECAT
PDI
Range [Unit]
31:0
Steps pulses (= distance) to be made for -/w
SD_CH2.
Can be overwritten at any time.
-/w
0. . . +(232) − 1
When zero, no more step pulses are generated
at output S2 or S2n,
Reading the register returns the remaining
number of step pulses to be generated.
Table 151: MFC IO Register 26 – SD_CH2_STEPTARGET
7.3.4.10 Register 27 – SD_CH0_COMPARE
Bit
Description
ECAT
PDI
Range [Unit]
31:0
Comparison value to compare with actual value -/w
of SD_CH0_STEPCOUNT.
-/w
−231. . . +(231) − 1
When both are equal and bit 6 in SD_CFG
is set, the next step rate as configured in
SD_CH0_NEXTSR will be assigned and used for
SD_CH0_SR.
Table 152: MFC IO Register 27 – SD_CH0_COMPARE
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