- 您现在的位置：买卖IC网 > PDF目录19383 > ADSP-21991BBCZ (Analog Devices Inc)IC DSP CTLR 16BIT 196CSPBGA PDF资料下载
参数资料
| 型号： | ADSP-21991BBCZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 5/44页 |
| 文件大小： | 0K |
| 描述： | IC DSP CTLR 16BIT 196CSPBGA |
| 标准包装： | 1 |
| 系列： | ADSP-21xx |
| 类型： | 定点 |
| 接口： | SPI，SSP |
| 时钟速率： | 150MHz |
| 非易失内存： | 外部 |
| 芯片上RAM： | 112kB |
| 电压 - 输入/输出： | 3.30V |
| 电压 - 核心： | 2.50V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 196-BGA |
| 供应商设备封装： | 196-MBGA（15x15） |
| 包装： | 托盘 |
第1页第2页第3页第4页当前第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页
–13–
REV. 0
ADSP-21991
Booting Modes
The ADSP-21991 supports a number of different boot modes
that are controlled by the three dedicated hardware boot mode
control pins (BMODE2, BMODE1, and BMODE0). The use
of three boot mode control pins means that up to eight different
boot modes are possible. Of these only five modes are valid on
the ADSP-21991. The ADSP-21991 exposes the boot
mechanism to software control by providing a nonmaskable boot
interrupt that vectors to the start of the on-chip ROM memory
block (at address 0xFF0000). A boot interrupt is automatically
initiated following either a hardware initiated reset, via the
RESET pin, or a software initiated reset, via writing to the
Software Reset register. Following either a hardware or a software
reset, execution always starts from the boot ROM at address
0xFF0000, irrespective of the settings of the BMODE2,
BMODE1, and BMODE0 pins. The dedicated BMODE2,
BMODE1, and BMODE0 pins are sampled at hardware reset.
The particular boot mode for the ADSP-21991 associated with
the settings of the BMODE2, BMODE1, BMODE0 pins is
defined in Table 3.
Instruction Set Description
The ADSP-21991 assembly language instruction set has an
algebraic syntax that was designed for ease of coding and read-
ability. The assembly language, which takes full advantage of the
unique architecture of the processor, offers the following benefits:
ADSP-219x assembly language syntax is a superset of and
source code compatible (except for two data registers and
DAG base address registers) with ADSP-21xx family
syntax. It may be necessary to restructure ADSP-21xx
programs to accommodate the unified memory space of
the ADSP-21991 and to conform to its interrupt vector
map.
The algebraic syntax eliminates the need to remember
cryptic assembler mnemonics. For example, a typical
arithmetic add instruction, such as AR = AX0 + AY0,
resembles a simple equation.
Every instruction, but two, assembles into a single, 24-bit
word that can execute in a single instruction cycle. The
exceptions are two dual word instructions. One writes
16-bit or 24-bit immediate data to memory, and the other
is an absolute jump/call with the 24-bit address specified
in the instruction.
Multifunction instructions allow parallel execution of an
arithmetic, MAC, or shift instruction with up to two
fetches or one write to processor memory space during a
single instruction cycle.
Program flow instructions support a wider variety of con-
ditional and unconditional jumps/calls and a larger set of
conditions on which to base execution of conditional
instructions.
Development Tools
The ADSP-21991 is supported with a complete set of
CROSSCORE software and hardware development tools,
including Analog Devices emulators and VisualDSP++ devel-
opment environment. The emulator hardware that supports
other ADSP-219x DSPs also fully emulates the ADSP-21991.
The VisualDSP++ project management environment lets pro-
grammers develop and debug an application. This environment
includes an easy to use assembler (which is based on an algebraic
syntax), an archiver (librarian/library builder), a linker, a loader,
a cycle-accurate instruction-level simulator, a C/C++ compiler,
and a C/C++ runtime library that includes DSP and mathemat-
ical functions. A key point for these tools is C/C++ code
efficiency. The compiler has been developed for efficient transla-
tion of C/C++ code to DSP assembly. The DSP has architectural
features that improve the efficiency of compiled C/C++ code.
The VisualDSP++ debugger has a number of important features.
Data visualization is enhanced by a plotting package that offers
a significant level of flexibility. This graphical representation of
user data enables the programmer to quickly determine the per-
formance of an algorithm. As algorithms grow in complexity, this
capability can have increasing influence on the design develop-
ment schedule, increasing productivity. Statistical profiling
enables the programmer to nonintrusively poll the processor as
it is running the program. This feature, unique to VisualDSP++,
enables the software developer to passively gather important code
execution metrics without interrupting the real-time characteris-
tics of the program. Essentially, the developer can identify
bottlenecks in software quickly and efficiently. By using the
profiler, the programmer can focus on those areas in the program
that impact performance and take corrective action.
Table 3. Summary of Boot Modes
Boot Mode
BMODE2
BMODE1
BMODE0
Function
0
000Illegal – Reserved
1
001Boot from External 8-bit Memory over EMI
2
010Execute from External 8-bit Memory
3
011Execute from External 16-bit Memory
4
100Boot from SPI
≤ 4K bits
5
101Boot from SPI
> 4K bits
6
110Illegal – Reserved
7
111Illegal – Reserved
相关PDF资料 |
PDF描述 |
|---|---|
| VI-B1V-CV-F3 | CONVERTER MOD DC/DC 5.8V 150W |
| RCM08DTAH-S189 | CONN EDGECARD 16POS R/A .156 SLD |
| VI-2NY-CX-F3 | CONVERTER MOD DC/DC 3.3V 49.5W |
| VI-2NY-CW-F1 | CONVERTER MOD DC/DC 3.3V 66W |
| 1130-332K-RC | CHOKE RF HI CURR 3300UH 10% RAD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ADSP-21991BST | 制造商:Analog Devices 功能描述:DSP Fixed-Point 16-Bit 160MHz 160MIPS 176-Pin LQFP 制造商:Rochester Electronics LLC 功能描述:HIGH PERFORMANCE MIXED SIGNAL DSP - Bulk |
| ADSP-21991BSTZ | 功能描述:IC DSP CONTROLLER 16BIT 176-LQFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - DSP（数字式信号处理器） 系列:ADSP-21xx 标准包装:2 系列:StarCore 类型:SC140 内核 接口:DSI，以太网，RS-232 时钟速率:400MHz 非易失内存:外部 芯片上RAM:1.436MB 电压 - 输入/输出:3.30V 电压 - 核心:1.20V 工作温度:-40°C ~ 105°C 安装类型:表面贴装 封装/外壳:431-BFBGA，FCBGA 供应商设备封装:431-FCPBGA（20x20） 包装:托盘 |
| ADSP-21992BBC | 制造商:Analog Devices 功能描述:DSP Fixed-Point 16-Bit 150MHz 150MIPS 196-Pin CSP-BGA 制造商:Rochester Electronics LLC 功能描述:MIXED SIGNAL DSP W/32K DM RAM& 16K PMRAM - Bulk |
| ADSP-21992BST | 制造商:Analog Devices 功能描述:DSP Fixed-Point 16-Bit 160MHz 160MIPS 176-Pin LQFP 制造商:Analog Devices 功能描述:IC MICROCOMPUTER 16-BIT |
| ADSP-21992BSTZ | 功能描述:IC DSP CONTROLLER 16BIT 176LQFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - DSP（数字式信号处理器） 系列:ADSP-21xx 标准包装:40 系列:TMS320DM64x, DaVinci™ 类型:定点 接口:I²C，McASP，McBSP 时钟速率:400MHz 非易失内存:外部 芯片上RAM:160kB 电压 - 输入/输出:3.30V 电压 - 核心:1.20V 工作温度:0°C ~ 90°C 安装类型:表面贴装 封装/外壳:548-BBGA，FCBGA 供应商设备封装:548-FCBGA（27x27） 包装:托盘 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 |
发布紧急采购，3分钟左右您将得到回复。