A high-level description of the features of the gadget is given in this section. The main functional components of the gadget are depicted in the accompanying figure. Although the MPC8548E is the focus of this article, the majority of the information also applies to the MPC8547E, MPC8545E, and MPC8543E family members. Specific variations, such as pinout variations and CPU frequency ranges, are noted as such. Consult the MPC8548E PowerQUICC III Integrated Host Processor Reference Manual for specific PVR and SVR numbers.
SPC8548PXAUJB Features
Programmable timing supporting DDR and DDR2 SDRAM
64-bit data interface
Four banks of memory supported, each up to 4 Gbytes, to a maximum of 16 Gbytes
DRAM chip configurations from 64 Mbits to 4 Gbits with ×8/×16 data ports
Full ECC support
Page mode support
Contiguous or discontiguous memory mapping
Read-modify-write support for RapidIO atomic increment, decrement, set, and clear transactions