1
Overview
The BajaPPC-750 is 64-bit single-board computer based on the IBM PowerPC™
PPC750 microprocessor. It can have up to 256 megabytes of synchronous DRAM
and incorporate two PMC module sites. The PMC interfaces act as a base for
plugover modules that provide additional functions. The BajaPPC-750 serves as a
flexible and powerful platform for real-time communications applications, such
as Advanced Intelligent Network (AIN) switches, telecommunications switches,
and local/wide area network (LAN/WAN) bridges. The BajaPPC-750 has an
optional configuration that allows for compatability with the Motorola
MVME712M transition module.
1.1 Components and Features
The following is a brief summary of the BajaPPC-750 components and features:
CPU
The CPU is an IBM PowerPC™ microprocessor running internally at
366 MHz or higher. The PPC750 has 32-kilobyte data and instruction
caches, three instructions per clock cycle, and a 32/64-bit data bus mode.
L2 Cache
A 1-megabyte Level 2 cache is provided by two synchronous random
access memory (SRAM) devices running at 122 MHz or higher. The cache
has zero wait state performance (2-1-1-1 burst) with a two-way set asso-
ciative cache design.
SDRAM
The BajaPPC-750 may be populated with 32, 64, 128, or 256 megabytes
of 64-bit wide synchronous DRAM. Refresh and other control functions
are provided by the Motorola MPC106 “Grackle” memory controller.
EPROM
The BajaPPC-750 has a 32-pin PLCC socket with a 512-kilobyte EPROM
or flash memory capacity. ROM access and control functions are pro-
vided by the Motorola MPC106 memory controller.
User Flash
The BajaPPC-750 allows for 12 megabytes of user flash to support the
PowerPC CPU. The MPC106 memory controller has four megabytes of
paged flash (512 kilobytes per page) on its 8-bit ROM bus, as well as eight
megabytes of flash on its 64-bit ROM bus.
Содержание BajaPPC-750
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