User`s guide

DWMBB Adapter

Table 3–2 (Cont.) VAXBI Commands and Corresponding XMI Transactions

VAXBI Command XMI Transaction

Broadcast (BDCST) Not supported (NO ACK to VAXBI)

Interprocessor Interrupt (IPINTR) Interrupt at IPL 16

STOP Not supported (NO ACK to VAXBI)

The DWMBB responds to VAXBI IDENTs that are directed to it under three different conditions. All three conditions

are implemented within the DWMBB/B module’s BIIC. These conditions are as follows:

1. The BIIC detects an error condition that results in a generated interrupt.

2. The user sets the force interrupt bits in the appropriate BIIC register.

3. External logic (such as the Interprocessor Interrupt decode logic) asserts the BCI INT signal (pin <6>) on the

BIIC.

Table 3–3 XMI Commands and Corresponding VAXBI Transactions

XMI Command VAXBI Transaction

Longword Read Longword Read

Quadword Read Illegal (NO ACK to XMI)

Octaword Read Illegal (NO ACK to XMI)

Hexword Read Illegal (NO ACK to XMI)

Longword Interlock Read Longword Interlock Read with Cache Intent

Quadword Interlock Read Illegal (NO ACK to XMI)

Octaword Interlock Read Illegal (NO ACK to XMI)

Hexword Interlock Read Illegal (NO ACK to XMI)

Longword Write Mask Longword Write Mask with Cache Intent

Quadword Write Mask Illegal (NO ACK to XMI)

Octaword Write Mask Illegal (NO ACK to XMI)

Hexword Write Mask Illegal (NO ACK to XMI)

Longword Unlock Write Mask Longword Unlock Write Mask with Cache Intent

Quadword Unlock Write Mask Illegal (NO ACK to XMI)

Octaword Unlock Write Mask Illegal (NO ACK to XMI)

Interrupt Request (INTR) Illegal (NO ACK to XMI)

Identify (IDENT) IDENT

Implied Vector Interrupt (IVINTR) Illegal (NO ACK to XMI)

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