User`s guide

DWMBB Adapter
3.1 DWMBB Overview
The DWMBB XMI-to-VAXBI adapter provides an information path
between the XMI bus and I/O devices on the VAXBI bus. The
DWMBB consists of two modules: the DWMBB/A XMI module and
the DWMBB/B VAXBI module. The IBUS connects the two modules.
Figure 3–1 shows the DWMBB block diagram.
Figure 3–1 DWMBB Adapter Block Diagram
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VAXBI
CORNER
(BIIC)X
M
I
C
O
R
N
E
R
MODULE
LOGIC
IBUS MASTER
AND SLAVE
PMRs MODULE LOGIC
DWMBB/A MODULE
T−2018 T−1043
msb−p082−89
SEQUENCERS
DWMBB/B MODULE
3–2