Datasheet

TMC4361A Datasheet | Document Revision 1.22 • 2017-JAN-12
207/230
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Read entire documentation; especially the “Supplemental Directives” on page 224.
 MAIN MANUAL 
Freeze Register
The freeze register can only be written once after an active reset and before motion starts. It
is always readable.
Reset and Clock Gating Register
FREEZE Register
R/W
Addr
Bit
Val
Description
RW
0x4E
23:0
DFREEZE (Default: 0x000000)
U
Freeze event deceleration value.
In case NFREEZE switches to low level, this parameter is used for an automatic
linear ramp stop.
Setting DFREEZE to 0 leads to an hard stop.
Value representation:
Frequency mode: not available
Direct mode: [∆v per clk cycle]
a[∆v per clk_cycle]= DFREEZE / 2
37
DFREEZE [pps
2
] = DFREEZE / 2
37
• f
CLK
2
Set DFREEZE ≤ 2
20
.
31:24
IFREEZE (Default: 0x00)
U
Scaling value in case NFREEZE is tied low.
In case IFREEZE =0, actual active scaling value is valid at FROZEN event.
Table 87: Freeze Register
Reset and Clock Gating Register
R/W
Addr
Bit
Val
Description
RW
0x4F
2:0
CLK_GATING_REG (Default: 0x0)
0
Clock gating is not activated.
7
Clock gating is activated.
31:8
RESET_REG (Default: 0x000000)
0
No reset is activated.
0x525354
Internal reset is activated.
Table 88: Reset and Clock Gating Register