User`s guide

KA52/53/54 CPU Module Description
1.1 KA52/53/54 CPU Module
Figure 1–2 KA52/53/54 CPU Module Block Diagram
DHW42*
CQBIC
SSC
Flash ROM DSSI SHAC
EDAL-C
SGEC
DSW42*
SCSI (C94)
QUART
4x serial
External Connection
Optional
*
DSSI
SCSI
Ethernet
Q-bus
Internal
Serial Lines
Terminal
Lines
B-Cache
512 Kb
NVAX CPU
NCA NMC
NDAL
XCVRXCVR
Memory
SIMMs
16, 32, 64, 80,
128 Mbyte
MLO-009354
The KA52/53/54 CPU module supports the following VAX data types:
• Byte, word, longword, and quadword
• Character string
• Variable-length bit field
• Absolute queues
• Self-relative queues
• f_floating-point, d_floating-point, and g_floating-point
The operating system uses software emulation to support other VAX data
types. The KA52/53/54 CPU module supports the following VAX instructions:
• Integer, arithmetic and logical
1–4 KA52/53/54 CPU Module Description