Model 350 Processor Board - HP 330 Service Handbook

Model 350 Processor Board
CPU
Floating Point Co-CPU
Memory Management
Type
Virtual Memory
Contexts
Page size
Cache Memory
Type
RAM
Cycle time
Partitioning
Timers
Match interrupt
Delay interrupt
Cyclical interrupt
System Timer
Beeper
Frequency range
Resolution
Duration
10
Product Information
MC68020 at 25 MHz
MC68881 at 20 MHz
HP Custom MMU
4 G bytes per process
84 default, user settable
4 Kbytes/page
Write through, instruction, data (external
to M
C68020
instruction cache)
16 Kbytes, 8K words of 32-bit entries
120 nsec
Four 32-bit words each; 2K partitions
Match on time of day 0.00 - 86 400.00 sec-
onds
10 msec - 1.94 days
10 msec - 1.94 days
4 Jisec resolution, accurate to 25 ppm
Three independent tone generators con-
trollable over 30 db.
81.46 Hz - 8.33 KHz
Capable of approximate tone scale over 5
octaves
0.01 second to 2.55 seconds per tone