adsp-21478 Analog Devices, Inc., adsp-21478 Datasheet - Page 7

• Manufacturer Part Number: adsp-21478
• Description: Sharc Processor
• Manufacturer: Analog Devices, Inc.

Preliminary Technical Data
Table 4. Internal Memory Space (ADSP-21479)
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ROM Based Security
The ADSP-2147x has a ROM security feature that provides
hardware support for securing user software code by preventing
unauthorized reading from the internal code when enabled.
When using this feature, the processor does not boot-load any
external code, executing exclusively from internal ROM. Addi-
tionally, the processor is not freely accessible via the JTAG port.
Instead, a unique 64-bit key, which must be scanned in through
the JTAG or Test Access Port will be assigned to each customer.
The device will ignore a wrong key. Emulation features and
external boot modes are only available after the correct key is
scanned.
Digital Transmission Content Protection
The DTCP specification defines a cryptographic protocol for
protecting audio entertainment content from illegal copying,
intercepting, and tampering as it traverses high performance
digital buses, such as the IEEE 1394 standard. Only legitimate
entertainment content delivered to a source device via another
approved copy protection system (such as the DVD content
Some ADSP-2147x processors include a customer-definable ROM block. ROM addresses on these models are not reserved as shown in this table. Please contact your Analog
IOP Registers 0x0000 0000–0x0003 FFFF
Long Word (64 Bits)
Block 0 ROM (Reserved)
0x0004 0000–0x0004 7FFF
Reserved
0x0004 8000–0x0004 8FFF
Block 0 SRAM
0x0004 9000–0x0004 EFFF
Reserved
0x0004 F000–0x0004 FFFF
Block 1 ROM (Reserved)
0x0005 0000–0x0005 7FFF
Reserved
0x0005 8000–0x0005 8FFF
Block 1 SRAM
0x0005 9000–0x0005 EFFF
Reserved
0x0005 F000–0x0005 FFFF
Block 2 SRAM
0x0006 0000–0x0006 3FFF
Reserved
0x0006 4000– 0x0006 FFFF
Block 3 SRAM
0x0007 0000–0x0007 3FFF
Reserved
0x0007 4000–0x0007 FFFF
Devices sales representative for additional details.
Extended Precision Normal or
Instruction Word (48 Bits)
Block 0 ROM (Reserved)
0x0008 0000–0x0008 AAA9
Reserved
0x0008 AAAA–0x0008 BFFF
Block 0 SRAM
0x0008 C000–0x0009 3FFF
Reserved
0x0009 4000–0x0009 5554
Block 1 ROM (Reserved)
0x000A 0000–0x000A AAA9
Reserved
Block 1 SRAM
0x000A C000–0x000B 3FFF
Reserved
Block 2 SRAM
0x000C 0000–0x000C 5554
Reserved
0x000C 5555–0x0000D 5554
Block 3 SRAM
0x000E 0000–0x000E 5554
Reserved
0x000E 5555–0x0000F 5554
0x000A AAAA–0x000A BFFF
0x000B 4000–0x000B 5554
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Rev. PrB | Page 7 of 70 | March 2010
Normal Word (32 Bits)
Block 0 ROM (Reserved)
0x0008 0000–0x0008 FFFF
Reserved
0x0009 0000–0x0009 1FFF
Block 0 SRAM
0x0009 2000–0x0009 DFFF
Reserved
0x0009 E000–0x0009 FFFF
Block 1 ROM (Reserved)
0x000A 0000–0x000AFFFF
Reserved
0x000B 0000–0x000B 1FFF
Block 1 SRAM
0x000B 2000–0x000B DFFF
Reserved
0x000B E000–0x000B FFFF
Block 2 SRAM
0x000C 0000–0x000C 7FFF
Reserved
0x000C 8000–0x000D FFFF
Block 3 SRAM
0x000E 0000–0x000E 7FFF
Reserved
0x000E 8000–0x000F FFFF
scrambling system) is protected by this copy protection system.
For more information on this feature, contact your local ADI
sales office.
FAMILY PERIPHERAL ARCHITECTURE
The ADSP-2147x family contains a rich set of peripherals that
support a wide variety of applications including high quality
audio, medical imaging, communications, military, test equip-
ment, 3D graphics, speech recognition, motor control, imaging,
and other applications.
External Port
The external port is available in the 196-ball CSP_BGA package.
The interface supports access to the external memory through
core and DMA accesses. The external memory address space is
divided into four banks. Any bank can be programmed as either
asynchronous or synchronous memory. The external ports are
comprised of the following modules.
• An Asynchronous Memory Interface which communicates
with SRAM, FLASH, and other devices that meet the stan-
dard asynchronous SRAM access protocol. The AMI
ADSP-21478/ADSP-21479
Short Word (16 Bits)
Block 0 ROM (Reserved)
0x0010 0000–0x0011 FFFF
Reserved
0x0012 0000–0x0012 FFFF
Block 0 SRAM
0x0012 4000–0x0013 BFFF
Reserved
0x0013 C000–0x0013 FFFF
Block 1 ROM (Reserved)
0x0014 0000–0x0015 FFFF
Reserved
0x0016 0000–0x0016 3FFF
Block 1 SRAM
0x0016 4000–0x0017 BFFF
Reserved
0x0017 C000–0x0017 FFFF
Block 2 SRAM
0x0018 0000–0x0018 FFFF
Reserved
0x0019 0000–0x001B FFFF
Block 3 SRAM
0x001C 0000–0x001C FFFF
Reserved
0x001D 0000–0x001F FFFF