BECKHOFF C1300 - Manual (Page 39)

C1300 VME to II/O Interface Unit Beckhoff II/O-System
Date : 18.12.95 Version : 2.01 Page 39 of 44
call mask:
P8 P1
<- - priority
ready mask:
P8 P1
with : P8 => process 08,
.......,
P1 => process 01
Error mask:
E8 E1
Error mask. Bit 0 set = normal error
Error mask. Bit 1 set = address error with addresscheck
Write protection:
DPRAM operations of the VME system must be enabled by deactivating the write
protection. By writing a 02h the write protection remains removed, until a
different date is written.