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參數資料
| 型號： | ADSP-21261 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | SHARC Embedded Processor |
| 中文描述： | SHARC處理器嵌入式處理器 |
| 文件頁數： | 7/44頁 |
| 文件大小： | 396K |
| 代理商： | ADSP-21261 |
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ADSP-21261
Rev. 0
|
Page 7 of 44
|
March 2006
Serial Peripheral (Compatible) Interface
Serial peripheral interface is an industry-standard synchronous
serial link, enabling the ADSP-21261 SPI-compatible port to
communicate with other SPI-compatible devices. SPI is an
interface consisting of two data pins, one device select pin, and
one clock pin. It is a full-duplex synchronous serial interface,
supporting both master and slave modes. The SPI port can
operate in a multimaster environment by interfacing with up to
four other SPI-compatible devices, either acting as a master or
slave device. The ADSP-21261 SPI-compatible peripheral
implementation also features programmable baud rates up to
37.5 MHz, clock phases, and polarities. The ADSP-21261 SPI-
compatible port uses open-drain drivers to support a multimas-
ter configuration and to avoid data contention.
Parallel Port
The parallel port provides interfaces to SRAM and peripheral
devices. The multiplexed address and data pins (AD15–0) can
access 8-bit devices with up to 24 bits of address, or 16-bit
devices with up to 16 bits of address. In either mode, 8- or 16-
bit, the maximum data transfer rate is one-third the core clock
speed. As an example, a clock rate of 200 MHz is equivalent to
66M byte/s, and a clock rate of 150 MHz is equivalent to
50M byte/s.
Figure 3. ADSP-21261 Memory Map
RESERVED
0x0004 2000–0x0005 7FFF
BLOCK 0 ROM (1.5M BIT)
0x0005 8000–0x0002 FFFF
IOP REGISTERS
0x0000 0000–0x0003 FFFF
BLOCK 0 SRAM (0.5M BIT)
0x0004 0000–0x0004 1FFF
RESERVED
0x0005 3000–0x0005 FFFF
BLOCK 1 SRAM (0.5M BIT)
0x0006 0000–0x0006 1FFF
BLOCK 1 ROM (1.5M BIT)
0x0007 8000–0x0007 DFFF
RESERVED
0x0007 E000–0x0007 FFFF
RESERVED
0x0006 2000–0x0007 7FFF
LONG WORD
ADDRESSING
RESERVED
0x0008 4000 - 0x000A FFFF
BLOCK 0 ROM (1.5M BIT)2
0x000B 0000–0x000B BFFF
IOP REGISTERS
0x0000 0000–0x0003 FFFF
BLOCK 0 SRAM (0.5M BIT)
0x0008 0000–0x0008 3FFF
RESERVED
0x000B C000–0x000B FFFF
BLOCK 1 SRAM (0.5M BIT)
0x000C 0000–0x000C 3FFF
BLOCK 1 ROM (1.5M BIT)3
0x000F 0000–0x000F BFFF
RESERVED
0x000F C000–0x000F FFFF
RESERVED
0x000C 4000–0x000E FFFF
NORMAL WORD
ADDRESSING
RESERVED
0x0010 8000–0x0015 FFFF
BLOCK 0 ROM (1.5M BIT)
0x0016 0000–0x0017 7FFF
IOP REGISTERS
0x0000 0000–0x0003 FFFF
BLOCK 0 SRAM (0.5M BIT)
0x0010 0000–0x0010 7FFF
RESERVED
0x0017 8FFF–0x0017 FFFF
BLOCK 1 SRAM (0.5M BIT)
0x0018 0000–0x0018 7FFF
BLOCK 1 ROM (1.5M BIT)
0x001E 0000–0x001F 7FFF
RESERVED
0x0018 8000–0x001D FFFF
SHORT WORD
ADDRESSING
RESERVED
0x0020 0000–0x00FF FFFF
EXTERNAL DMA
ADDRESS SPACE1
0x0100 0000–0x02FF FFFF
RESERVED
0x0300 0000–0x3FFF FFFF
EXTERNAL MEMORY
SPACE
1EXTERNAL MEMORY IS NOT DIRECTLY
ACCESSIBLE BY THE CORE. DMA MUST BE
USED TO READ OR WRITE TO THIS MEMORY
USING THE SPI OR PARALLEL PORT.
2BLOCK 0 ROM HAS A 48-BIT ADDRESS RANGE
(0xA0000–0xA7 FFFF).
3BLOCK 1 ROM HAS A 48-BIT ADDRESS RANGE
(0xE0000–0xE7 FFFF).
INTERNAL MEMORY
SPACE
RESERVED
0x000
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相關代理商/技術參數 |
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| ADSP-21261SKBC-150 | 制造商:Analog Devices 功能描述:DSP Floating-Point 32-Bit 150MHz 150MIPS 136-Pin CSP-BGA 制造商:Rochester Electronics LLC 功能描述:150 MHZ, 32BIT DSP PROCESSOR. - Bulk |
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| ADSP-21261SKSTZ150 | 功能描述:IC DSP 32BIT 150MHZ 144LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - DSP（數字式信號處理器） 系列:SHARC® 標準包裝:2 系列:StarCore 類型:SC140 內核 接口:DSI，以太網，RS-232 時鐘速率:400MHz 非易失內存:外部 芯片上RAM:1.436MB 電壓 - 輸入/輸出:3.30V 電壓 - 核心:1.20V 工作溫度:-40°C ~ 105°C 安裝類型:表面貼裝 封裝/外殼:431-BFBGA，FCBGA 供應商設備封裝:431-FCPBGA（20x20） 包裝:托盤 |
| ADSP-21262 | 制造商:AD 制造商全稱:Analog Devices 功能描述:SHARC Processor |
| ADSP-21262_05 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Embedded Processor |
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