Datasheet

TMC8462 Datasheet • Document Revision V1.5 • 2019-June-21
119 / 204
Bit Description ECAT PDI Range [Unit]
10:8 Trigger configuration for transmission start
000
2
: Start when data is written into TX register
001
2
: Start on beginning of PWM cycle
010
2
: Start on center of PWM cycle
011
2
: Start on PWM A mark
100
2
: Start on PWM B mark
101
2
: Start on PWM A&B marks
110
2
: reserved
111
2
: Start on single trigger (Bit 15)
r/w r/w 0
10
. . . 7
10
14:11 reserved r/w r/w
15 Start transfer once when this bit is set and trig-
ger configuration is set to 111
2
r/w r/w
Table 133: MFC IO Register 8 – SPI_CONF
7.3.2.4 Register 9 – SPI_STATUS
Bit Description ECAT PDI Range [Unit]
0 SPI transfer done, ready for next transfer r/- r/-
7:1 unused r/- r/- 0
Table 134: MFC IO Register 9 – SPI_STATUS
7.3.2.5 Register 10 – SPI_LENGTH
Bit Description ECAT PDI Range [Unit]
5:0 SPI datagram length
Example: 000111
2
= 8 bit datagram
Example: 111111
2
= 64 bit datagram
-/w -/w 0
10
. . . 63
10
[bit]
7:6 unused -/w -/w 0
Table 135: MFC IO Register 10 – SPI_LENGTH
7.3.2.6 Register 11 – SPI_TIME
Bit Description ECAT PDI Range [Unit]
7:0 SPI_BIT_DURATION
f
SP I
=
25MHz
(4+(2∗SP I_BIT _DU RAT ION))
-/w -/w 0
10
. . . 255
10
Table 136: MFC IO Register 11 – SPI_TIME
©2019 TRINAMIC Motion Control GmbH & Co. KG, Hamburg, Germany
Terms of delivery and rights to technical change reserved.
Download newest version at www.trinamic.com