405EX Datasheet, PDF (10/67 Pages) Applied Micro Circuits Corporation – PowerPC 405EX Embedded Processor

PPC405EX – PowerPC 405EX Embedded Processor
Revision 1.09 - August 21, 2007
Preliminary Data Sheet
Features include:
• Memory-to-memory transfers
• Buffered memory-to-peripheral transfers
• Buffered peripheral-to-memory transfers
• Four independent DMA channels
• Scatter/gather capability for dynamically programming multiple DMA transfers
• Programmable address increment or decrement
• Internal data buffering
• Can transfer data to/from any PLB slave, including the external bus
USB 2.0 OTG Interface
One USB 2.0 On-the-Go (OTG) controller that can be configured as either a Host or Device port.
Features include:
• Low- (Host only), Full- and High-Speed support
• Internal DMA to optimize performance and offload the CPU
• Up to two IN/OUT Endpoints in Device mode (one can be isochronous)
• Supports maximum packet size of 1024B (isochronous) and 512B (bulk)
• Support for isochronous traffic
• Three packets per microframe (24MB/s throughput)
• Eight KB buffer
• ULPI SDR interface
DDR1/2 SDRAM Controller
The Double Data Rate 1/2 (DDR1/2) SDRAM memory controller supports industry standard discrete devices that
are compatible with both the DDR1 or DDR2 specifications. The correct I/O supply voltage must be provided for the
two types of DDR devices: DDR1 devices require +2.5V and DDR2 devices require +1.8V.
Global memory timings, address and bank sizes, and memory addressing modes are programmable.
Features include:
• 16- or 32-bit memory interface
• Optional 8-bit error checking and correcting (ECC)
• 1.6-GB/s peak data rate
• Two memory banks of up to 1 GB each
• Maximum capacity of 2GB
• Support for one memory bank of 2GB with CAS latencies of 2, 2.5, or 3
• Clock frequencies from 133MHz (266Mbps) to 200MHz (400Mbps) supported
(Faster parts may be used, but must be clocked no faster than 200MHz)
• Page mode accesses (up to 16 open pages) with configurable paging policy
• Programmable address mapping and timing
• Software initiated self-refresh
• Power management (self-refresh, suspend)
• Two regions (two chip selects, one clock driver)
PCI Express
The PCI Express single-lane interfaces include the following features:
Features include:
• Compliant with PCI Express base specification 1.1
• Each PCI Express port can be End Point or Root Complex. (Upstream & Downstream)
– Applications compliant with MSI rules are limited to one End Point port per PPC405EX
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