BECKHOFF EtherCAT Registers Section II - Manual (Page 87)

Distributed Clocks (0x0900:0x09FF)
Slave Controller – Register Description II-75
3.49.6 SyncManager Event Times
Table 127: Register EtherCAT Buffer Change Event Time (0x09F0:0x09F3)
ESC20 ET1100 ET1200 IP Core
Bit Description ECAT PDI Reset Value
31:0 Register captures local time of the beginning
of the frame which causes at least one
SyncManager to assert an ECAT event r/- r/- 0
NOTE: Register bits [31:8] are internally latched (ECAT/PDI independently) when bits [7:0] are read, which
guarantees reading a consistent value.
Table 128: Register PDI Buffer Start Event Time (0x09F8:0x09FB)
ESC20 ET1100 ET1200 IP Core
Bit Description ECAT PDI Reset Value
31:0 Register captures local time when at least
one SyncManager asserts an PDI buffer
start event
r/- r/- 0
NOTE: Register bits [31:8] are internally latched (ECAT/PDI independently) when bits [7:0] are read, which
guarantees reading a consistent value.
Table 129: Register PDI Buffer Change Event Time (0x09FC:0x09FF)
ESC20 ET1100 ET1200 IP Core
Bit Description ECAT PDI Reset Value
31:0 Register captures local time when at least
one SyncManager asserts an PDI buffer
change event
r/- r/- 0
NOTE: Register bits [31:8] are internally latched (ECAT/PDI independently) when bits [7:0] are read, which
guarantees reading a consistent value.