TMC5161 DATASHEET (Rev. 1.01 / 2018-NOV-20)
29
GENERAL CONFIGURATION REGISTERS (0X00…0X0F)
R/W
Addr
n
Register
Description / bit names
12 diag0_int_pushpull
0:
1:
SWN_DIAG0 is open collector output (active low)
Enable SWN_DIAG0 push pull output (active high)
13 diag1_poscomp_pushpull
0:
SWP_DIAG1 is open collector output (active low)
1:
Enable SWP_DIAG1 push pull output (active high)
14 small_hysteresis
0:
1:
Hysteresis for step frequency comparison is 1/16
Hysteresis for step frequency comparison is 1/32
15 stop_enable
0:
Normal operation
1:
Emergency stop: ENCA_DCIN stops the sequencer
when tied high (no steps become executed by
the sequencer, motor goes to standstill state).
16 direct_mode
0:
Normal operation
1:
Motor coil currents and polarity directly
programmed via serial interface: Register XTARGET
(0x2D) specifies signed coil A current (bits 8..0)
and coil B current (bits 24..16). In this mode, the
current is scaled by IHOLD setting. Velocity based
current regulation of stealthChop is not available
in this mode. The automatic stealthChop current
regulation will work only for low stepper motor
velocities.
17 test_mode
0:
1:
Normal operation
Enable analog test output on pin ENCN_DCO.
IHOLD[1..0] selects the function of ENCN_DCO:
0…2: T120, DAC, VDDH
Hint: Not for user, set to 0 for normal operation!
Bit
GSTAT – Global status flags
(Re-Write with ‘1’ bit to clear respective flags)
reset
0
1
1:
Indicates that the IC has been reset since the last
read access to GSTAT. All registers have been
cleared to reset values.
drv_err
R+
WC
1:
Indicates, that the driver has been shut down
0x01
3
GSTAT
due to overtemperature or short circuit detection
since the last read access. Read DRV_STATUS for
details. The flag can only be cleared when the
temperature is below the limit again.
2
uv_cp
1:
Indicates an undervoltage on the charge pump.
The driver is disabled during undervoltage. This
flag is latched for information.
Interface transmission counter. This register becomes
incremented with each successful UART interface write access.
It can be read out to check the serial transmission for lost
data. Read accesses do not change the content. Disabled in SPI
operation. The counter wraps around from 255 to 0.
R
0x02
8
IFCNT
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