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PCI Audio SAA7785
Accelerator
Philips Semiconductors Preliminary Specification
1999 Nov 12 26
DSP EXTERNAL MEMORY INTERFACE
MA[14:0] External Memory Address
Address lines for the external SRAM devices. The external memory interface can be used for
DSP code space if the EXT_SRAM_EN (in HDCFG, bit 5) is set. Otherwise, the DSP will use
internal ROM as the code source.
MD[15:0] External Memory Data Bus
Word wide data bus for the external SRAM. Use 6ns memory for maximum DSP performance.
MCS# External Memory Chip Select
Chip select line for the external SRAM devices.
MWE# External Memory Read/Write Control
Selects the external SRAM for reading or writing.