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1-2
Architecture Overview
Introduction
1.1
Introduction
At the heart of the SPARCbook 3 design concept is the Tadpole Advanced
Notebook Architecture (ANA). This defines a set of goals and guidelines to
which the SPARCbook 3 range of systems are designed. It is a modular
approach which results in a system that implements highly integrated
components to provide the performance and I/O facilities normally
associated with desktop workstations. It also results in a system that can be
readily upgraded by the user with larger memory (up to 128 MB) or disk
capacities or returned to the factory for upgrades with the fastest CPUs
available for notebook implementation.
1.2
Main Components
The SPARCbook 3 contains three printed circuit boards. These are the
S3-XP Base board, the S3-XP or the S3TX CPU module, and the
microcontroller board.
1.2.1
Base board
The S3-XP Base board carries all of the I/O components together with the
display controller, RAMDAC and 2MB of Video RAM, and the battery
management hardware. It is populated on both sides using mainly surface
mount devices in order to keep its physical dimensions to a minimum. The
Base board also carries two PCMCIA sockets and the I/O panel which is
visible at the rear of the assembled system.
The Base board provides mounting points and sockets to accommodate the
CPU module.
1.2.2
CPU module
The CPU module carries the main SPARC CPU. The CPU module is
extended to carry the main memory SIMMS. This physical arrangement
has the advantage of making the SIMMs very easy to fit to or remove from
a fully assembled system through the battery tray without the use of tools.
The CPU module is mounted onto the base board such that the CPU itself
is sandwiched between the CPU module and Base board. However, an
interesting feature of the Base board is a large hole through which a
heatsink fitted to the main CPU is allowed to protrude when the two boards
S3GX_TRMBook Page 2 Friday, September 19, 1997 11:39 am
Содержание SPARCbook 3 series
Страница 1: ...Series Technical Reference Manual 980327 02 3 S3GX_TRMBook Page i Friday September 19 1997 11 39 am...
Страница 8: ...viii S3GX_TRMBook Page viii Friday September 19 1997 11 39 am...
Страница 28: ...1 16 Architecture Overview Microcontroller Subsystem S3GX_TRMBook Page 16 Friday September 19 1997 11 39 am...
Страница 44: ...2 16 The SPARC CPU SBus Controller S3GX_TRMBook Page 16 Friday September 19 1997 11 39 am...
Страница 76: ...5 8 SCSI Controller DMA Support S3GX_TRMBook Page 8 Friday September 19 1997 11 39 am...
Страница 82: ...6 6 Ethernet Interface DMA Support for Network Operations S3GX_TRMBook Page 6 Friday September 19 1997 11 39 am...
Страница 96: ...7 14 PCMCIA Interface Microcontroller Registers S3GX_TRMBook Page 14 Friday September 19 1997 11 39 am...
Страница 146: ...9 28 MODEM Class 2 Fax Command Set S3GX_TRMBook Page 28 Friday September 19 1997 11 39 am...
Страница 180: ...11 30 Display Interface RAMDAC S3GX_TRMBook Page 30 Friday September 19 1997 11 39 am...
Страница 210: ...B 10 Connector Information Removable Hard Drive SCSI Connector S3GX_TRMBook Page 10 Friday September 19 1997 11 39 am...
Страница 216: ...Index vi S3GX_TRMBook Page vi Friday September 19 1997 11 39 am...