ADSP-21262
ADDRESS
IOP REGISTERS
0x0000 0000 - 0x0003 FFFF
0x0004 0000
BLOCK 0 SRAM (1Mbit)
0x0004 3FFF
RESERVED
0x0004 4000 - 0x0005 7FFF
0x0005 8000
0x0005 FFFF
0x0006 0000
BLOCK 1 SRAM (1 Mbit)
0x0006 3FFF
0x0006 4000 - 0x0007 7FFF
0x0007 8000
EXTERNAL DMA
0x0007 FFFF
0x0008 0000
ADDRESS SPACE 1, 4
RESERVED
LONG WORD
ADDRESS
SPACE
BLOCK 0 ROM (2 Mbit)
ADDRESS
0x0020 0000
0x00FF FFFF
0x0100 0000
RESERVED
BLOCK 1 ROM (2 Mbit)
BLOCK 0 SRAM (1 Mbit)
0x0008 7FFF
RESERVED
0x0008 8000 - 0x000A FFFF
0x000B 0000
0x000B FFFF
0x000C 0000
BLOCK 1 SRAM (1 Mbit)
0x000C 7FFF
RESERVED
BLOCK 1 ROM (2 Mbit)
3
0x000C 8000 - 0x000E FFFF
0x000F 0000
0x000F FFFF
0x0010 0000
RESERVED
0x02FF FFFF
0x0300 0000
0x3FFF FFFF
NORMAL WORD
ADDRESS
SPACE
BLOCK 0 ROM (2 Mbit)
2
EXTERNAL MEMORY
SPACE
1EXTERNAL MEMORY IS NOT DIRECTLY ACCESSIBLE BY THE
CORE. DMA MUST BE USED TO READ OR WRITE TO THIS
MEMORY USING THE SPI OR PARALLEL PORT.
2BLOCK 0 ROM HAS A 48-BIT ADDRESS RANGE
(0x000A 0000 - 0x000A AAAA).
3BLOCK 1 ROM HAS A 48-BIT ADDRESS RANGE
BLOCK 0 SRAM (1 Mbit)
0x0010 FFFF
RESERVED
BLOCK 0 ROM (2 Mbit)
0x0011 0000 - 0x0015 FFFF
0x0016 0000
0x0017 FFFF
0x0018 0000
(0x000E 0000 - 0x000E AAAA).
4USE THE EXTERNAL ADDRESSES LISTED HERE WITH THE
PARALLEL PORT DMA REGISTERS. THE PARALLEL PORT
GENERATES ADDRESS WITHIN THE
RANGE 0x0000 0000-0x00FF FFFF.
SHORT WORD
ADDRESS
SPACE
BLOCK 1 SRAM (1 Mbit)
0x0018 FFFF
RESERVED
BLOCK 1 ROM (2 Mbit)
0x0019 0000 - 0x001D FFFF
0x001E 0000
0x001F FFFF
INTERNAL MEMORY
SPACE
Figure 3. ADSP-21262 Memory Map
Rev. A |
Page 7 of 44 |
May 2004