
GENERAL INTRODUCTION
1.2FEATURES
| • | PowerPC™ Processor | An AMCC 440GX embedded processor based on the AMCC | 
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 | PowerPC superscalar core. It operates at a maximum frequency of | 
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 | 667 MHz internally. | 
| • | SDRAM | Up to 512 MByte of 333 MHz DDR SDRAM is supported via a 200 | 
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 | pin SoDIMM module. | 
| • | Flash ROM | 8 Mbytes of  | 
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 | Flash ROM is reserved for the storage of  | 
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 | system parameters. System calls for storing parameters in this | 
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 | memory are included in the Breeze Development Environmentª | 
| • | Console Serial Port | An asynchronous serial port based on a 16C750 UART with an RS- | 
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 | 232 interface is provided for a console terminal or workstation | 
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 | connection. | 
| • | Ethernet Ports | Two 10/100/1Gb  | 
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 | supports up to 1Gbps and uses a RJ45 style modular phone jack. The | 
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 | MAC contained within the 440GX interfaces with 2 Broadcom | 
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 | BMC5461S PHY transceivers. | 
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 | Two 10/100  | 
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 | and also uses a RJ45 style modular phone jack. In this case the MAC | 
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 | contained within the 440GX interfaces with a Broadcom BCM5248. | 
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 | The BCM5248 is an eight port PHY, but we are only using the first 2 | 
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 | ports. | 
| • | Temperature Sensors | Two LM75 type programmable temperature sensors with interrupt | 
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 | signaling capability are provided for system monitoring purposes. | 
| • | I2O Messaging | The  | 
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 | communication. | 
| • | DMA Controller | The 440GX supports 4 separate DMA channels for high throughput | 
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 | data transfers between PCI bus agents and the local SDRAM | 
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 | memory. | 
| • | Breeze Development | |
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 | Environment™ | |
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 | More information on the Breeze Development Environment™ can | 
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 | be found in Breeze Developer’s Manual. | 
| • | Blade Style Interface | The  | 
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 | geographic addressing from J1 and J2. Note that the fan detect and | 
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 | power supply status signals are only available when a  | 
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 | installed in the system slot. | 
| • | Hot Swap | The  | 
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 | 2.1. | 
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 | Revision 1.0, January 2006 | 
