ADSP-2187N View Datasheet(PDF) - Analog Devices
Part Name
Description
Manufacturer
ADSP-2187N Datasheet PDF : 48 Pages
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ADSP-218xN
0x3FFF
PROGRAM MEMORY
MODEB = 1
RESERVED
0x2000
0x1FFF
0x0000
EXTERNAL PM
0x3FFF
0x2000
0x1FFF
PROGRAM MEMORY
MODEB = 0
PM OVERLAY 1,2
(EXTERNAL PM)
PM OVERLAY 0,4,5
(INTERNAL PM)
INTERNAL PM
0x0000
0x3FFF
0x3FE0
0x3FDF
DATA MEMORY
32 MEMORY-MAPPED
CONTROL REGISTERS
INTERNAL DM
0x2000
0x1FFF
0x0000
DM OVERLAY 1,2
(EXTERNAL DM)
DM OVERLAY 0,4,5
(INTERNAL DM)
Figure 7. ADSP-2187 Memory Architecture
0x3FFF
PROGRAM MEMORY
MODEB = 1
RESERVED
0x2000
0x1FFF
0x0000
EXTERNAL PM
0x3FFF
0x2000
0x1FFF
PROGRAM MEMORY
MODEB = 0
PM OVERLAY 1,2
(EXTERNAL PM)
PM OVERLAY
0,4,5,6,7
(INTERNAL PM)
INTERNAL PM
0x0000
0x3FFF
0x3FE0
0x3FDF
0x2000
0x1FFF
0x0000
DATA MEMORY
32 MEMORY-MAPPED
CONTROL REGISTERS
INTERNAL DM
DM OVERLAY 1,2
(EXTERNAL DM)
DM OVERLAY
0,4,5,6,7,8
(INTERNAL DM)
Figure 8. ADSP-2188 Memory Architecture
0x3FFF
PROGRAM MEMORY
MODEB = 1
RESERVED
0x2000
0x1FFF
0x0000
EXTERNAL PM
0x3FFF
0x2000
0x1FFF
PROGRAM MEMORY
MODEB = 0
PM OVERLAY 1,2
(EXTERNAL PM)
PM OVERLAY 0,4,5
(INTERNAL PM)
INTERNAL PM
0x0000
DATA MEMORY
0x3FFF
0x3FE0
0x3FDF
32 MEMORY-MAPPED
CONTROL REGISTERS
INTERNAL DM
0x2000
0x1FFF
0x0000
DM OVERLAY 1,2
(EXTERNAL DM)
DM OVERLAY
0,4,5,6,7
(INTERNAL DM)
Figure 9. ADSP-2189 Memory Architecture
Program Memory
Program Memory (Full Memory Mode) is a 24-bit-wide space
for storing both instruction opcodes and data. The member
DSPs of this series have up to 48K words of Program Memory
RAM on chip, and the capability of accessing up to two 8K
external memory overlay spaces, using the external data bus.
Rev. A | Page 10 of 48 | August 2006
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