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Overview
For more information on QUICC Engine sub-modules, see QUICC Engine Block Reference
Manual with Protocol Interworking .
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DDR SDRAM memory controller
— Programmable timing supporting DDR2 SDRAM
— Integrated SDRAM clock generation
— Supports 8-bit ECC
— 16/32-bit data interface, up to 333-MHz data rate
— 14 address lines
— The following SDRAM configurations are supported:
– Up to two physical banks (chip selects), 512-MB addressable space for 32 bit data interface
– 64-Mbit to 2-Gbit devices with x8/x16/x32 data ports (no direct x4 support)
— One 16-bit device or two 8-bit devices on a 16-bit bus, or two 16-bit devices or four 8-bit
devices on a 32-bit bus Support for up to 16 simultaneous open pages for DDR2
— Two clock pair to support up to 4 DRAM devices
— Supports auto refresh
— On-the-fly power management using CKE
Enhanced local bus controller (eLBC)
— Multiplexed 26-bit address and 8-/16-bit data operating at up to 66 MHz
— Eight chip selects supporting eight external slaves
– Four chip selects dedicated
– Four chip selects offered as multiplexed option
— Supports boot from parallel NOR Flash and parallel NAND Flash
— Supports programmable clock ratio dividers
— Up to eight-beat burst transfers
— 16- and 8-bit ports, separate LWE for each 8 bit
— Three protocol engines available on a per chip select basis:
– General-purpose chip select machine (GPCM)
– Three user programmable machines (UPMs)
– NAND Flash control machine (FCM)
— Variable memory block sizes for FCM, GPCM, and UPM mode
— Default boot ROM chip select with configurable bus width (8 or 16)
— Provides two Write Enable signals to allow single byte write access to external 16-bit eLBC
slave devices
Integrated programmable interrupt controller (IPIC)
— Functional and programming compatibility with the MPC8260 interrupt controller
— Support for external and internal discrete interrupt sources
— Programmable highest priority request
— Six groups of interrupts with programmable priority
MPC8309 PowerQUICC II Pro Integrated Communications Processor Family Hardware Specifications, Rev. 3
4
Freescale Semiconductor
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相关PDF资料
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