Sun Microsystems SunSwift SPARCserver 1000, Installation Manual, Page: 56 / 70

Glossary-2 SPARCserver 1000 System Installation Manual—June 1996
BBC (BootBus Controller)
The BBC is an ASIC on the control board. The BBC works with a BBC2 on each
system board to control parts of the boot process. Among other functions, the
BBC2 provides SuperSPARC modules access to diagnostic code contained in
POST EPROMs on the system board. Other functions permit SuperSPARC
modules to access system status registers and the time-of-day (TOD) clock.
BBC2 (BootBus Controller 2)
See BBC.
BIC (Bus Interface Chip)
Four BICs on each system board connect the board to the backplane XDBus™.
Board
The term board refers to printed circuit boards larger than a certain size (for
example, larger than 3x5-inch SBus cards and SPARC modules).
There are two types of boards in the SPARCserver 1000 system: system boards
(maximum of four) and control board (one only). See also Card and Module.
Relative sizes of the system board, SPARC module, and SBus card are:
Note – The SPARCserver 1000 system board is not interchangeable with VME
boards.
See also specific board types: Control Board and System Board. See also
SuperSPARC Module and SBus Card.
System Board
(16x16 in.)
Control Board
(4x9 in.)
SBus Card
(3x5 in.)
SPARC
Module
(3x5 in.)