User`s guide

Address Assignments
A.5 Processor Registers
Table A–1 (Cont.) Processor Registers
Number
Register
Name Mnemonic (Dec) (Hex) Type Impl Cat
I/O
Address
Console
Receiver
Control
/Status
RXCS 32 20 RW SSC 2-3 E1000080
Console
Receiver
Data
Buffer
RXDB 33 21 R SSC 2-3 E1000084
Console
Transmitter
Control
/Status
TXCS 34 22 RW SSC 2-3 E1000088
Console
Transmitter
Data
Buffer
TXDB 35 23 W SSC 2-3 E100008C
Reserved 36 24 3 E1000090
Reserved 37 25 3 E1000094
Machine
Check
Error
Register
MCESR 38 26 W NVAX 2-1
Reserved 39 27 3 E100009C
Reserved 40 28 3 E10000A0
Reserved 41 29 3 E10000A4
Console
Saved PC
SAVPC 42 2A R NVAX 2-1
Console
Saved PSL
SAVPSL 43 2B R NVAX 2-1
Reserved 44–54 2C 3 E10000B0
I/O System
Reset
Register
IORESET 55 37 W SSC 2-3 E10000DC
(continued on next page)
A–12 Address Assignments