ADSP-2187LBST-160 datasheet(9/32 Pages) AD

Numer części	ADSP-2187LBST-160

Szczegółowy opis	DSP Microcomputer

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Producent	AD [Analog Devices]

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ADSP-2187L

–9–

REV. 0

ACCESSIBLE WHEN

PMOVLAY = 2

ACCESSIBLE WHEN

PMOVLAY = 1

ACCESSIBLE WHEN

PMOVLAY = 5

ALWAYS

ACCESSIBLE

AT ADDRESS

0 0000 – 0 1FFF

ACCESSIBLE WHEN

PMOVLAY = 0

ACCESSIBLE WHEN

PMOVLAY = 4

INTERNAL

MEMORY

EXTERNAL

MEMORY

0 2000–

0 3FFF

0 2000–

0 3FFF

0 2000–

0 3FFF

0 2000–

0 3FFF2

0 2000–

0 3FFF2

PM (MODE B = 0)

8K INTERNAL

PMOVLAY = 0

8K EXTERNAL

PROGRAM MEMORY

MODE B = 1

ADDRESS

0 3FFF

0 2000

0 1FFF

0 0000

8K INTERNAL

PMOVLAY = 0, 4, 5

OR

8K EXTERNAL

PMOVLAY = 1, 2

0 3FFF

0 2000

0 1FFF

8K INTERNAL

0 0000

PROGRAM MEMORY

MODE B = 0

ADDRESS

ACCESSIBLE WHEN

PMOVLAY = 1

RESERVED

INTERNAL

MEMORY

EXTERNAL

MEMORY

0 2000–

0 3FFF

0 0000–

0 1FFF2

PM (MODE B = 1)1

RESERVED

1WHEN MODE B = 1, PMOVLAY MUST BE SET TO 0

2SEE TABLE III FOR PMOVLAY BITS

ACCESSIBLE WHEN

PMOVLAY = 0

RESERVED

Figure 4. Program Memory

Program Memory (Host Mode) allows access to all internal

memory. External overlay access is limited by a single external

address line (A0). External program execution is not available

in host mode due to a restricted data bus that is 16-bits wide

only.

Table III. PMOVLAY Bits

PMOVLAY Memory

A13

A12:0

0, 4, 5

Internal

Not Applicable

1

External

0

13 LSBs of Address

Overlay 1

Between 0x2000

and 0x3FFF

2

External

1

13 LSBs of Address

Overlay 2

Between 0x2000

and 0x3FFF

DATA MEMORY

Data Memory (Full Memory Mode) is a 16-bit-wide space

used for the storage of data variables and for memory-mapped

control registers. The ADSP-2187L has 32K words on Data

Memory RAM on chip, consisting of 16,352 user-accessible lo-

cations and 32 memory-mapped registers. Support also exists

for up to two 8K external memory overlay spaces through the

external data bus. All internal accesses complete in one cycle.

Accesses to external memory are timed using the wait states

specified by the DWAIT register.

ACCESSIBLE WHEN

DMOVLAY = 2

ACCESSIBLE WHEN

DMOVLAY = 1

ACCESSIBLE WHEN

DMOVLAY = 5

32 MEMORY

MAPPED

REGISTERS

0 3FFF

0 2000

0 1FFF

INTERNAL

8160

WORDS

0 0000

DATA MEMORY

ADDRESS

ALWAYS

ACCESSIBLE

AT ADDRESS

0 2000 – 0 3FFF

ACCESSIBLE WHEN

DMOVLAY = 0

ACCESSIBLE WHEN

DMOVLAY = 4

INTERNAL

MEMORY

EXTERNAL

MEMORY

0 2000–

0 1FFF

0 0000–

0 1FFF

0 0000–

0 1FFF

0 0000–

0 1FFF

0 0000–

0 1FFF

DATA MEMORY

8K INTERNAL

DMOVLAY = 0, 4, 5

OR

EXTERNAL 8K

DMOVLAY = 1, 2

0 3FE0

0 3FDF

Figure 5. Data Memory Map

Data Memory (Host Mode) allows access to all internal memory.

External overlay access is limited by a single external address line

(A0). The DMOVLAY bits are defined in Table IV.

Table IV. DMOVLAY Bits

DMOVLAY

Memory

A13

A12:0

0, 4, 5

Internal

Not Applicable

1

External

0

13 LSBs of Address

Overlay 1

Between 0x2000

and 0x3FFF

2

External

1

13 LSBs of Address

Overlay 2

Between 0x2000

and 0x3FFF

Podobny numer części - ADSP-2187LBST-160

Producent	Numer części	Arkusz danych	Szczegółowy opis
Analog Devices	ADSP-2187LBST-160	630Kb / 48P	DSP Microcomputer REV. C

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Podobny opis - ADSP-2187LBST-160

Producent	Numer części	Arkusz danych	Szczegółowy opis
Analog Devices	ADSP-2185L	223Kb / 31P	DSP Microcomputer
	ADSP-2186M	288Kb / 40P	DSP Microcomputer REV. 0
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	ADSP-2185	291Kb / 32P	DSP Microcomputer REV. 0
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	ADSP-2186BSTZ-160	261Kb / 36P	DSP Microcomputer REV. B
	ADSP-2184BSTZ-160	216Kb / 31P	DSP Microcomputer REV. 0

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ADSP-2187LBST-160 Arkusz danych(PDF) 9 Page - Analog Devices

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