Memory; Dio-Ii I/O Bus - HP 330 Service Handbook

Memory
Memory Boards
Type
System bus width
Bandwidth
Average cycle time
Memory Sizes
330 Standard RAM
330 Maximum RAM
350 Standard RAM
350 Maximum RAM
010-11 1/0
Bus
Width
Bus bandwidth
12 Product Information
Byte parity error-checking
32 bits address; 32 bits data
22.2 Mbyte/sec read; 14.3 Mbyte/sec
write
180 nsec
4 Mbytes on processor board
8 Mbytes (4 Mbytes on processor plus one
4 Mbyte RAM controller board)
8 Mbytes: 4 Mbyte controller board plus
4 Mbyte add-on board
32 Mbytes (2 boards of 16 Mbytes each)
32 bits address; 32 bits data
6 Mb/sec