BECKHOFF EtherCAT Registers Section II - Manual (Page 70)

SyncManager (0x0800:0x087F)
II-58 Slave Controller – Register Description
Table 92: Register Status Register SyncManager y (0x0805+y*8)
ESC20 ET1100 ET1200 IP Core
[7:6] [7:6] [7:6] [7:6]
V2.3.0/
V2.03a
Bit Description ECAT PDI Reset Value
0 Interrupt Write:
1:
Interrupt after buffer was completely and
successfully written
0: Interrupt cleared after first byte of buffer
was read
NOTE: This interrupt is signaled to the reading
side if enabled in the SM Control register.
r/- r/- 0
1 Interrupt Read:
1:
Interrupt after buffer was completely and
successful read
0: Interrupt cleared after first byte of buffer
was written
NOTE: This interrupt is signaled to the writing side
if enabled in the SM Control register.
r/- r/- 0
2 Reserved r/- r/- 0
3 Mailbox mode: mailbox status:
0:
Mailbox empty
1: Mailbox full
Buffered mode: reserved
r/- r/- 0
5:4 Buffered mode: buffer status (last written
buffer):
00: 1. buffer
01: 2. buffer
10: 3. buffer
11: (no buffer written)
Mailbox mode: reserved r/- r/- 11
6 Read buffer in use (opened) r/- r/- 0
7 Write buffer in use (opened) r/- r/- 0