Service manual

Table 4–11 (Cont.): <REFERENCE>(XRP) Internal Processor Reg-
isters
Register Mnemonic Address Type Class
Console Saved PC SAVPC IPR42 R 2
Console Saved PSL SAVPSL IPR43 R 2
Reserved IPR44–IPR46 3
Translation Buffer Tag TBTAG IPR47 W 2
Reserved IPR48–IPR54 3
I/O Reset IORESET IPR55 W 2
Memory Management Enable MAPEN IPR56 R/W 1 I
Translation Buffer Invalidate
All
TBIA IPR57 W 1
Translation Buffer Invalidate
Single
TBIS IPR58 W 1
Translation Buffer Data TBDATA IPR59 W 2
Reserved IPR60–IPR61 3
System Identification SID IPR62 R 1
Translation Buffer Check TBCHK IPR63 W 1
Reserved IPR64–IPR111 3
Backup Cache Reserved BC112 IPR112 R/W 5
Backup Cache Tag Store BCBTS IPR113 R/W 2
Backup Cache P1 Tag Store BCP1TS IPR114 R/W 2
Backup Cache P2 Tag Store BCP2TS IPR115 R/W 2
Backup Cache Refresh BCRFR IPR116 R/W 2
Backup Cache Index BCIDX IPR117 R/W 2
Backup Cache Status BCSTS IPR118 R/W 2 I
Backup Cache Control BCCTL IPR119 R/W 2 I
Backup Cache Error BCERR IPR120 R 2
Backup Cache Flush Backup Tag Store BCFBTS IPR121 W 2
Backup Cache Flush Primary Tag
Store
BCFPTS IPR122 W 2
4–62 VAX 6000 Models 300 and 400 Service Manual