Revision 1.26 – October 15, 2007
440EPx – PPC440EPx Embedded Processor
Preliminary Data Sheet
• External master interface
– Write posting from external master
– Read prefetching on PLB for external master reads
– Bursting capable from external master
– Allows external master access to all non-EBC PLB slaves
– External master can control EBC slaves for access
Ethernet Controller
Ethernet support provided by the PPC440EPx interfaces to the physical layer but the PHY is not included on the
chip:
• Two 10/100/1000 interfaces running in full- and half-duplex modes providing:
– One Gigabit Media Independent Interface (GMII)
– One Media Independent Interface (MII)
– Two Reduced Gigabit MII (RGMII)
– Two Serial MII (SMII) at 100/10Mbps.
– Packet reject support
– Jumbo frame support
– DMA capability
– Interrupt coalescence
DMA-to-PLB3 (64-bit) Controller
This DMA controller provides a DMA interface between OPB0 and PLB3.
Features include:
• Supports the following transfers:
– Memory-to-memory transfers
– Buffered peripheral to memory transfers
– Buffered memory to peripheral transfers
• Four channels
• Scatter/Gather capability for programming multiple DMA operations
• 32-byte buffer
• 8-, 16-, 32-bit peripheral support (OPB and external)
• 32-bit addressing
• Address increment or decrement
• Supports internal and external peripherals
• Support for memory mapped peripherals
• Support for peripherals running on slower frequency buses
DMA-to-PLB4 (128-bit) Controller
This DMA controller provides a DMA interface between the OPB1 dedicated to the USB 2.0 device ports and
PLB4.
Features include:
• Four independent channels supporting internal USB 2.0 Device endpoints 1 and 2
• Support for memory-to-memory, peripheral-to-memory, and memory-to-peripheral transfers
• Scatter/gather capability
• 128-byte buffer with programmable thresholds
AMCC Proprietary
15
AMCC [ APPLIED MICRO CIRCUITS CORPORATION ]
