TMC262 DATASHEET (Rev. 2.07 / 2013-FEB-14)
24
6.9 Driver Control Register (DRVCONF)
DRVCONF
Driver Configuration
Bit
Name
Function
Comment
19
18
17
1
1
1
Register address bit
Register address bit
Register address bit
Reserved TEST mode
16 TST
Must be cleared for normal operation. When set, the
SG_TST output exposes digital test values, and the
TEST_ANA output exposes analog test values. Test value
selection is controlled by SGT1 and SGT0:
TEST_ANA:
%00: anatest_2vth,
%01: anatest_dac_out,
%10: anatest_vdd_half.
%00: comp_A,
SG_TST:
%01: comp_B,
%10: CLK,
%11: on_state_xy
15 SLPH1
14 SLPH0
Slope control, high
side
%00: Minimum
%01: Minimum temperature compensation mode.
%10: Medium temperature compensation mode.
%11: Maximum
In temperature compensated mode (tc), the MOSFET gate
driver strength is increased if the overtemperature
warning temperature is reached. This compensates for
temperature dependency of high-side slope control.
13 SLPL1
12 SLPL0
Slope control, low %00: Minimum.
side
%01: Minimum.
%10: Medium.
%11: Maximum.
11
0
Reserved
10 DISS2G
Short to GND
protection disable
Short to GND
detection timer
0: Short to GND protection is enabled.
1: Short to GND protection is disabled.
%00: 3.2µs.
9
8
TS2G1
TS2G0
%01: 1.6µs.
%10: 1.2µs.
%11: 0.8µs.
7
6
SDOFF
STEP/DIR interface
disable
0: Enable STEP/DIR operation.
1: Disable STEP/DIR operation. SPI interface is used to
move motor.
VSENSE
Sense resistor
0: Full-scale sense resistor voltage is 305mV.
voltage-based current 1: Full-scale sense resistor voltage is 165mV.
scaling
(Full-scale refers to a current setting of 31 and a DAC
value of 255.)
5
4
RDSEL1
RDSEL0
Select value for read
out (RD bits)
%00
%01
%10
Microstep position read back
stallGuard2 level read back
stallGuard2 and coolStep current level read
back
%11
Reserved, do not use
3
2
1
0
0
0
0
0
Reserved
Reserved
Reserved
Reserved
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