Table 3-14. Dsp1628X08 Instruction/Coefficient Memory Map (X-Memory Space) - Lucent Technologies DSP1617 Information Manual

DSP1611/17/18/27/28/29 DIGITAL SIGNAL PROCESSOR
Software Architecture
3.2 Memory Space and Addressing
3.2.2 X-Memory Space (continued)

Table 3-14. DSP1628x08 Instruction/Coefficient Memory Map (X-Memory Space)

Decimal Address in
Address pc, pt, pi, pr
0 0x0000
0x0FFF
4096 0x1000
0x17FF
6144 0x1800
0x1FFF
8192 0x2000
0x3FFF
16384 0x4000
0x4FFF
20480 0x5000
0x5FFF
24576 0x6000
0x6FFF
28672 0x7000
0x7FFF
32768 0x8000
0x8FFF
36864 0x9000
0x9FFF
40960 0xA000
0xAFFF
45056 0xB000
0xBFFF
49152 0xC000
0xCFFF
53248 0xD000
0xDFFF
57344 0xE000
0xEFFF
61440 0xF000
65535 0xFFFF
† 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 secure mask-programmable option is selected.
3-16
(continued)
†
MAP1 (EXM = 0 MAP2 (EXM = 1
‡
LOWPR = 0) LOWPR = 0)
IROM EROM
(48K)
DPRAM DPRAM
(8K)
Reserved Reserved
(8K)
DRAFT COPY
§
MAP3 (EXM = 0
LOWPR = 1)
DPRAM
(48K) (8K)
Reserved
(8K)
IROM
(48K)
(8K)
(8K)
Information Manual
April 1998
MAP4 (EXM = 1
LOWPR = 1)
DPRAM
(8K)
Reserved
(8K)
EROM
(48K)
Lucent Technologies Inc.