Slajd19 (162)

MCF5407- WŁASNOŚCI

♦ DMA contro 11 er

—    Four fully progranimable cliaiinels: two support external reąuests ancl external a ckn owi e d ge s

—    Dual-address and single-addresstransfer supportwitli 8-_? 16-, and 32-bitdata capability

—    Source/destination address pointers tliat ean increment or reniain constant

—    24-bit transfer counter per cliannel

—    Operand packing and unpaeking supported

—Auto-a li gnme nt transfer s suppoi*tedfor efficient błock movement

—    Bursting and cycle steal support

—    Two-bus-clock internal a ccess

—Automatic DMA transfers from 011-cliip UARTs using internal interrupts ♦ DRAM controller

—    Synchronous DRAM (SDRAM), extended-data-out (EDO) DRAM, and fast page modę suppoii:

—    Up to 512: Mbytes of DRAM

—    Progranimable timer provides CAS-before-RAS refreslifor asynclironous DRAMs

—    Suppoii: for two separate memoryblocks