ds96-039wdsp ETC-unknow, ds96-039wdsp Datasheet - Page 21

• Manufacturer Part Number: ds96-039wdsp
• Description: Clarification Serial Control Register Description Dsp1620/27/28/29 Devices
• Manufacturer: ETC-unknow

February 1997
4 Hardware Architecture
Table 5. Instruction/Coefficient Memory Maps
DSP1628x16
DSP1628x08
* MAP1 is set automatically during an HDS trap. The user-selected map is restored at the end of the HDS trap service routine.
† LOWPR is an alf register bit. The Lucent Technologies development system tools can independently set the memory map.
‡ MAP3 is not available if the secure mask-programmable option is selected.
Lucent Technologies Inc.
X Address
X Address
60K—64K
60K—64K
12K
16K
20K
24K
28K
32K
36K
40K
44K
48K
52K
54K
56K
12K
16K
20K
24K
28K
32K
36K
40K
44K
48K
52K
54K
56K
58K
4K
8K
4K
6K
8K
0
0
AB[0:15]
AB[0:15]
0xC000
0xD000
0xD800
0xFFFF
0xC000
0xD000
0xD800
0xFFFF
0xA000
0xB000
0xE000
0xA000
0xB000
0xE000
0xE800
0x0000
0x1000
0x2000
0x3000
0x4000
0x5000
0x6000
0x7000
0x8000
0x9000
0x0000
0x1000
0x1800
0x2000
0x3000
0x4000
0x5000
0x6000
0x7000
0x8000
0x9000
(continued)
LOWPR = 0
LOWPR = 0
Reserved
DPRAM
DPRAM
EXM = 0
EXM = 0
MAP 1*
MAP 1*
IROM
IROM
(48K)
(16K)
(48K)
(8K)
(8K)
†
†
LOWPR = 0
LOWPR = 0
Reserved
DPRAM
DPRAM
EXM = 1
EXM = 1
EROM
MAP 2
MAP 2
(48K)
(16K)
(48K)
EROM
(8K)
(8K)
DSP1628 Digital Signal Processor
LOWPR = 1
LOWPR = 1
Reserved
DPRAM
DPRAM
EXM = 0
EXM = 0
MAP 3
MAP 3
IROM
IROM
(16K)
(48K)
(48K)
(8K)
(8K)
‡
‡
LOWPR = 1
LOWPR = 1
Reserved
DPRAM
DPRAM
EXM = 1
EXM = 1
EROM
EROM
MAP 4
MAP 4
(16K)
(48K)
(48K)
(8K)
(8K)
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