- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄374037 > ADSP2185 (Analog Devices, Inc.) DSP Microcomputer PDF資料下載
參數(shù)資料
| 型號： | ADSP2185 |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | 數(shù)字信號處理 |
| 英文描述： | DSP Microcomputer |
| 中文描述： | DSP微機(jī) |
| 文件頁數(shù)： | 8/32頁 |
| 文件大?。?/td> | 289K |
| 代理商： | ADSP2185 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁當(dāng)前第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁
ADSP-2185
–8–
REV. 0
T able II.
PMOVLAY
Memory
A13
A12:0
0
1
Internal
External
Overlay 1
Not Applicable Not Applicable
0
13 LSBs of Address
Between 0x2000
and 0x3FFF
13 LSBs of Address
Between 0x2000
and 0x3FFF
2
External
Overlay 2
1
T his organization provides for two external 8K overlay segments
using only the normal 14 address bits. T his allows for simple
program overlays using one of the two external segments in
place of the on-chip memory. Care must be taken in using this
overlay space in that the processor core (i.e., the sequencer)
does not take into account the PMOVLAY register value. For
example, if a loop operation was occurring on one of the exter-
nal overlays and the program changes to another external over-
lay or internal memory, an incorrect loop operation could occur.
In addition, care must be taken in interrupt service routines as
the overlay registers are not automatically saved and restored on
the processor mode stack.
When Mode B = 1, booting is disabled and overlay memory is
disabled (PMOVLAY must be 0). Figure 5 shows the memory
map in this configuration.
INTERNAL 8K
(PMOVLAY = 0,
MODE B = 1)
0x3FFF
0x2000
0x1FFF
8K EXTERNAL
0x0000
PROGRAM MEMORY
ADDRESS
Figure 5. Program Memory (Mode B = 1)
Data Memory
T he ADSP-2185 has 16,352 16-bit words of internal data
memory. In addition, the ADSP-2185 allows the use of 8K
external memory overlays. Figure 6 shows the organization of
the data memory.
8K INTERNAL
(DMOVLAY = 0)
OR
EXTERNAL 8K
(DMOVLAY = 1, 2)
INTERNAL
8160 WORDS
DATA MEMORY
ADDRESS
32 MEMORY–
MAPPED REGISTERS
0x3FFF
0x3FEO
0x3FDF
0x2000
0x1FFF
0x0000
Figure 6. Data Memory
T here are 16,352 words of memory accessible internally when
the DMOVLAY register is set to 0. When DMOVLAY is set to
something other than 0, external accesses occur at addresses
0x0000 through 0x1FFF. T he external address is generated as
shown in T able III.
T able III.
DMOVLAY
Memory
A13
A12:0
0
1
Internal
External
Overlay 1
Not Applicable Not Applicable
13 LSBs of Address
Between 0x2000
and 0x3FFF
13 LSBs of Address
Between 0x2000
and 0x3FFF
0
2
External
Overlay 2
1
T his organization allows for two external 8K overlays using only
the normal 14 address bits. All internal accesses complete in one
cycle. Accesses to external memory are timed using the wait
states specified by the DWAIT register.
I/O Space (Full Memory Mode)
T he ADSP-2185 supports an additional external memory space
called I/O space. T his space is designed to support simple con-
nections to peripherals or to bus interface ASIC data registers.
I/O space supports 2048 locations. T he lower eleven bits of the
external address bus are used; the upper three bits are unde-
fined. T wo instructions were added to the core ADSP-2100
Family instruction set to read from and write to I/O memory
space. T he I/O space also has four dedicated 3-bit wait state
registers, IOWAIT 0-3, which specify up to seven wait states to
be automatically generated for each of four regions. T he wait
states act on address ranges as shown in T able IV.
T able IV.
Address Range
Wait State Register
0x000–0x1FF
0x200–0x3FF
0x400–0x5FF
0x600–0x7FF
IOWAIT 0
IOWAIT 1
IOWAIT 2
IOWAIT 3
Composite Memory Select (
CMS
)
T he ADSP-2185 has a programmable memory select signal that
is useful for generating memory select signals for memories
mapped to more than one space. T he
CMS
signal is generated
to have the same timing as each of the individual memory select
signals (
PMS
,
DMS
,
BMS
,
IOMS
), but can combine their
functionality.
When set, each bit in the CMSSEL register causes the
CMS
signal to be asserted when the selected memory select is as-
serted. For example, to use a 32K word memory to act as both
program and data memory, set the
PMS
and
DMS
bits in the
CMSSEL register and use the
CMS
pin to drive the chip select
of the memory and use either
DMS
or
PMS
as the additional
address bit.
T he
CMS
pin functions as the other memory select signals, with
the same timing and bus request logic. A 1 in the enable bit
causes the assertion of the
CMS
signal at the same time as the
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ADSP2186 | DSP Microcomputer |
| ADT14 | Circular Connector; No. of Contacts:61; Series:LJT07R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:25; Circular Contact Gender:Socket; Circular Shell Style:Jam Nut Receptacle; Insert Arrangement:25-61 |
| ADT14GP | Circular Connector; No. of Contacts:61; Series:LJT07R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:25; Circular Contact Gender:Socket; Circular Shell Style:Jam Nut Receptacle; Insert Arrangement:25-61 |
| ADT14GS | Circular Connector; No. of Contacts:61; Series:LJT07R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:25; Circular Contact Gender:Socket; Circular Shell Style:Jam Nut Receptacle; Insert Arrangement:25-61 |
| ADT7460 | dB COOL?? Remote Thermal Controller and Fan Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADSP-2185 | 制造商:AD 制造商全稱:Analog Devices 功能描述:DSP Microcomputer |
| ADSP-2185BST-115 | 制造商:Analog Devices 功能描述:DSP Fixed-Point 16-Bit 28.8MHz 28.8MIPS 100-Pin LQFP 制造商:Rochester Electronics LLC 功能描述:DSP,5V,28MHZ,32K WORD RAM, 100TQFP - Bulk |
| ADSP-2185BST-133 | 制造商:Analog Devices 功能描述:DSP Fixed-Point 16-Bit 33.3MHz 33.3MIPS 100-Pin LQFP 制造商:Analog Devices 功能描述:IC MICROCOMPUTER 32-BIT 制造商:Analog Devices 功能描述:DIGITAL SIGNAL PROCESSOR IC, DSP Type:Floating Point, Package / Case:100-TQFP, S |
| ADSP-2185BSTZ-133 | 功能描述:IC DSP CONTROLLER 16BIT 100TQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - DSP（數(shù)字式信號處理器） 系列:ADSP-21xx 標(biāo)準(zhǔn)包裝:40 系列:TMS320DM64x, DaVinci™ 類型:定點(diǎn) 接口:I²C，McASP，McBSP 時(shí)鐘速率:400MHz 非易失內(nèi)存:外部 芯片上RAM:160kB 電壓 - 輸入/輸出:3.30V 電壓 - 核心:1.20V 工作溫度:0°C ~ 90°C 安裝類型:表面貼裝 封裝/外殼:548-BBGA，F(xiàn)CBGA 供應(yīng)商設(shè)備封裝:548-FCBGA（27x27） 包裝:托盤 配用:TMDSDMK642-0E-ND - DEVELPER KIT W/NTSC CAMERA296-23038-ND - DSP STARTER KIT FOR TMS320C6416296-23059-ND - FLASHBURN PORTING KIT296-23058-ND - EVAL MODULE FOR DM642TMDSDMK642-ND - DEVELOPER KIT W/NTSC CAMERA |
| ADSP-2185BSTZ-133 | 制造商:Analog Devices 功能描述:IC 16-BIT MICROCOMPUTER |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。