Xerox 550 User Manual

Table 24. Bit Assignments, Address Compare Register Q31 (X11 FI)
Bit
Position
Status Significance
0
1
Selects mapped address· comparison.
0
Selects unmapped address comparison.
1 1
Selects address comparison during instruction access only.
0
Selects address comparison for all memory cycles.
2
1
Selects comparisons only during memory write cycle.
0
Selects all memory cycle comparisons.
3
1
Selects page comparisons.
0 Selects word comparisons.
4
1
System turns on audible alarm for 220 microseconds each time an Address Compare occurs
(maximum frequency 1 KHz).
0 Address match alarm is disabled.
5
1
The processor is forced into the HALT state when an Address Compare occurs.
0 Address Halt disabled.
6-7
-
Reserved.
8-31
Comparison address field.
Control Commands 149

Xerox 550 Specifications

General

Monthly Duty Cycle	Up to 300, 000 pages
Connectivity	Ethernet, USB
Print Speed (Color)	Up to 50 ppm
Duplex Printing	Standard
Printer Type	Laser
Supported Operating Systems	Windows, macOS, Linux
Paper Size	A4, Legal, Letter