User`s guide

VAXBI Registers

Device Register (DTYPE)

The VAXBI Device Register is loaded during self-test by console code with the

DWMBB VAXBI device type and by the revision select logic with the revision

level.

ADDRESS

VAXBI nodespace base address + 0000 0000

Device Revision Device Type (210F)

msb−p121−89

bits<31:16>

Name: Device Revision

Mnemonic: DREV

Type: R/W, 0

Identiﬁes the revision level of the device. The revision level is loaded

by hardware during BCI DC LO. For revision H, the DREV ﬁeld

contains 7 (hex). There is no revision I. Starting with revision J, the

DREV ﬁeld reﬂects the letter revision of the module as follows:

DWMBA/B Revision DREV (decimal) DREV (hex)

J0 10 000A

J1 10 000A

K0 11 000B

K1 11 000B

Z0 26 001A

bits<15:0>

Name: Device Type

Mnemonic: DTYPE

Type: R/W, 0

Identiﬁes the type of VAXBI node. The processor’s console code loads

DTYPE with 210F (hex) after successful completion of self-test.

3–112