GMS V191 Atlantis-V Single Board Computer
The GMS V191 Atlantis-V from General Microsystems is a PowerPC single board computer. The V191 uses a PowerPC 7410 processor that operates from 500 MHz up to the 1 GHz operation of the future.
The 7410 processor is supported with up to 2 MB (32 KB x 64 bit) of L2 cache, which can run at clock speeds of up to 400 MHz.
The Atlantis-V provides up to 1 GB of 133/100 MHz of SDRAM via two SODIMM modules. To match the system I/O, the V191 provides dual, 64 bit PCI local buses. The two PCI buses have I/O transfers to system memory at a rate of 533 MBps.
One 64 bit, 66 MHz bus is connected to a PMC expansion module to support I/O devices like gigabit and fibre channel.
The other high-speed PCI bus is also connected to a PMC expansion module, which supports three additional 64 bit 66 MHz PMC modules. This 64 bit PCI bus is also clocked at 33 MHz in order to support slower I/O devices.
Minimising the CPU's workload are eight DMA controllers for moving data in-out of different buses.
Additionally, the Atlantis-V supports three 10/100Base-T auto negotiate ethernet channels, four serial ports (two of are multiprotocols channels), synchronous I/O protocols such as HDLC and BISYNC. Additional I/O ports include two USB ports and two Ultra DMA 33/66/100 IDE ports.
The device provides up to 64 MB of flash memory, which is hardware write protected against accidental writes. This memory is a 32 bit wide bus, which supports full DMA operations.
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