Analog Devices ADSP-2192 Figure 4. PCI Addressing for 24-bit and 16-bit Memory Blocks in 24-bit Access (BAR2) Mode, Figure 5. PCI Addressing for 24-bit and 16-bit Memory Blocks in 16-bit Access (BAR3) Mode.

PRELIMINARY

TECHNICAL

DATA

PRELIMINARY

TECHNICAL

DATA

This information applies to a product under development. Its characteristics and specifications are subject to change with-

out notice. Analog Devices assumes no obligation regarding future manufacturing unless otherwise agreed to in writing. 13REV. PrA

For current information contact Analog Devices at (781) 461-3881 ADSP-2192October 2000

Figure 4. PCI Addressing for 24-bit and 16-bit Memory Blocks in 24-bit Access (BAR2) ModeFigure 5. PCI Addressing for 24-bit and 16-bit Memory Blocks in 16-bit Access (BAR3) Mode.

BYTE3 BYTE2 BYTE1 BYTE0

PCI DWORD

DSP Word AddressPCI Byte Address

UNUSED

0x0000

0x3FFF

0x4000

0x7FFF

0x0 0000

0x0 FFFC

0x1 0000

0x1 FFFC

16K x 24-bit Block

16K x 16-bit Block

BYTE3 IS ALWAYS UNUSED.

BYTE0 IS UNUSED BY 16-BIT

MEMORY LOCATIONS.

ALLOWED BYTE ENABLES:

C/BE = 0000

C/BE = 1000

BYTE3 BYTE2 BYTE1 BYTE0

PCI DWORD

DSP Word AddressPCI Byte Address

UNUSED

0x0000

0x3FFF

0x4000

0x7FFF

0x0 0000

0x0 7FFE

0x0 8000

0x0 FFFE

16K x 24-bit Block

16K x 16-bit Block

UNUSED

Data Word NData Word N+1

ALL BYTES ARE USED.

ALLOWED BYTE ENABLES:

C/BE = 1100

C/BE = 0011

C/BE = 0000

Data Word N

Data Word N + 1