BECKHOFF EtherCAT Registers Section II - Manual (Page 79)

Distributed Clocks (0x0900:0x09FF)
Slave Controller – Register Description II-67
3.49.3 Cyclic Unit Control
Table 109: Register Cyclic Unit Control (0x0980)
ESC20 ET1100 ET1200 IP Core
[7:6] [7:6] [7:6] [7:6]
Bit Description ECAT PDI Reset Value
0 SYNC out unit control:
0:
ECAT controlled
1: PDI controlled
r/w r/- 0
3:1 Reserved, write 0 r/- r/- 0
4 Latch In unit 0:
0:
ECAT controlled
1: PDI controlled
NOTE: Always 1 (PDI controlled) if System Time
is PDI controlled. Latch interrupt is routed to
ECAT/PDI depending on this setting
r/w r/- 0
5 Latch In unit 1:
0:
ECAT controlled
1: PDI controlled
NOTE: Latch interrupt is routed to ECAT/PDI
depending on this setting
r/w r/- 0
7:6 Reserved, write 0 r/- r/- 0