DEC KA681, Системное обслуживание

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Address Assignments
B.5 Processor Registers
Table B–1 (Cont.) Processor Registers
Number
Register Name Mnemonic (Dec) (Hex) Type Impl Cat
I/O
Address
Interrupt Priority Level
1
IPL 18 12 RW NVAX 1-1
AST Level
1
ASTLVL 19 13 RW NVAX 1-1
Software Interrupt Request Register SIRR 20 14 W NVAX 1-1
Software Interrupt Summary
Register
1
SISR 21 15 RW NVAX 1-1
Reserved 22–23 16 3 E1000058
Interval Counter Control/Status ICCS 24 18 RW NCA 2-7 E1000060
Next Interval Count NICR 25 19 RW NCA 3-7 E1000064
Interval Count ICR 26 1A RW NCA 3-7 E1000068
Time of Year Register TODR 27 1B RW SSC 2-3 E100006C
Console Storage Receiver Status CSRS 28 1C RW SSC 2-3 E1000070
Console Storage Receiver Data CSRD 29 1D R SSC 2-3 E1000074
Console Storage Transmitter Status CSTS 30 1E RW SSC 2-3 E1000078
Console Storage Transmitter Data CSTD 31 1F W SSC 2-3 E100007C
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
1
Initialized on reset
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B–10 Address Assignments