Model XSC-100 (Maple) Dual PowerPC Extended ATX Single Board Computer Development System

Larger View of XSA-200 Block Diagram

The XSC-100 Single Board Computer is a full featured development system that offers a higher level of computing power for PowerPC users. The XSC-100 has incorporated IBM’s 970FX processor, a 64-bit implementation of the PowerPC® family.

The dual 970FX PowerPC® architecture is connected to the system with IBM’s CPC925 North Bridge. The North Bridge accommodates functions such as CPU bus interface/management, DDR memory bus control, PCI/AGP, and HyperTransport. The HyperTransport infrastructure provides chip-to-chip interconnect and allows additional peripheral I/O to be integrated into the design. The XSC-100’s Extended ATX form factor (13” x 12”) allows deployment with industry standard chassis and enclosures.

Board Features:

Processors

• Dual IBM 970FX Reduced Instruction Set (RISC) processors operating at speeds up to 2.4 GHz
• IBM 405EP Service and Control Processor
• JTAG header to support debuggers, such as an IBM RISCWatch
• I2C support

Bridge: IBM CPC925

• 16-bit 600MHz HyperTransport Cave
• AGP 3.0 8x Slot
• I2C Support
• Two independent 970FX processor interfaces

Memory

970FX Processors

• 400MHz DDR SDRAM memory (PC2700 Compliant)
• 4 DIMM sockets (supports up to 8GB of memory)
• 1MB boot flash

405EP Processor

• 256 MB SDRAM
• 1MB Boot Flash, separated into two 512K PLCC32 sockets, located on the top of the board.
• 32Mbytes of Intel StrataFlash for local Flash File System.

HyperTransport Bus Infrastructure

• Peer-to-peer access via reflected forward looping

• 16-bit bus between Northbridge and first Tunnel/PCI-X bridge
• 8-bit busses between the Tunnel/PCI-X bridge and Southbridge

I/O Configuration

• Dual 10/100/1000 (GigE) Ethernet Ports of off PCI-X Bus to I/O area RJ-45’s
• Intel GD31244 QUAD Serial-ATA Disk Peripheral
• Single 10/100 Ethernet Port off South Bridge to I/O area RJ-45
• 2 USB 1.1 Ports
• ATA133 capable IDE interface (Master + Slave)
• Dual Serial Ports (1 serial port per processor)
• 405EP Service Processor I/O:

- 10/100 Ethernet Port to RJ-45
- 2 RS-232 Serial Ports
- System Management Bus Control
- 32K NVRAM with Real Time Clock

Expansion Slots

• (2) 3.3V 64-bit PCI-X Slots, running at up to 133MHz
• (1) 3.3V 32-bit PCI slot running at 33 MHz
• AGP 8X compliant slot

Operating Systems

• Linux (64-bit)