データシートサーチシステム |
|
CS4610 データシート(PDF) 11 Page - Cirrus Logic |
|
CS4610 データシート(HTML) 11 Page - Cirrus Logic |
11 / 29 page DS241PP5 11 CS4610/11 CrystalClear™ SoundFusion™ PCI Audio Accelerator Stream Processor DSP Core The CS4610/11 Stream Processor (SP) is a custom DSP core design optimized for processing and syn- thesizing digital audio data streams. The SP fea- tures a Somewhat Long Instruction Multiple Data (SLIMD) modified dual Harvard architecture. The device uses a 40-bit instruction word and operates on 32-bit data words. The SP core is conservatively rated at 300 Million Instructions per second (300 MIPS) when running at a 100 MHz internal clock speed (CS4611 runs at 85 MHz). The SP includes two Multiply-Accumulate (MAC) blocks and one 16-bit Arithmetic and Logic Unit (ALU). The MAC units perform 20-bit by 16-bit multiplies and have 40-bit accumulators, providing higher quality than typical 16-bit DSP architectures. PLL and Clock Control The CS4610/11 includes a programmable Phase Locked Loop (PLL) circuit which generates the high frequency internal SP clock from a lower fre- quency input clock. The PLL input may come from the CS4610/11 crystal oscillator circuit or the serial port clock (ASCLK/SCLK). The CS4610/11 Clock Control circuitry allows gating of clocks to various internal functional blocks to conserve power during power conservation modes, as well as during nor- mal modes of operation when no tasks are being executed. Host Interface The CS4610/11 host interface is comprised of two separate interface blocks which are memory mapped into host address space. The CS4610/11 interface blocks can be located anywhere in the host 32-bit physical address space. The interface block locations are defined by the addresses pro- grammed into the two Base Address Registers in the CS4610/11 PCI Configuration Space. These base addresses are normally set up by the system’s Plug and Play BIOS. The first interface block (lo- cated using Base Address 0) is a 4 kByte register block containing general purpose configuration, control, and status registers for the device. The sec- ond interface block (located using Base Address 1) is a 1 MByte block which maps all of the CS4610/11 internal RAM memories (SP Program RAM, Parameter RAM, and Sample RAM), along with the SP debug registers, into host memory space. This allows the host to directly peek and poke RAM locations on the device. The relation- ship between the Base Address Registers in the CS4610/11 PCI Configuration Space and the host memory map is depicted in Figure 8. CS4610/11 PCI Interface The CS4610/11 provides a bus mastering PCI bus interface which complies with the PCI Local Bus Specification version 2.1. PCI Bus Transactions As a target of a PCI bus transaction, the CS4610/11 supports the Memory Read (from internal registers or memory), Memory Write (to internal registers or memory), Configuration Read (from CS4610/11 configuration registers), Configuration Write (to CS4610/11 configuration registers), Memory Read Multiple (aliased to Memory Read), Memory Read Line (aliased to Memory Read), and the Memory Write and Invalidate (aliased to Memory Write) transfer cycles. The I/O Read, I/O Write, Interrupt Acknowledge, Special Cycles, and Dual Address Cycle transactions are not supported. As Bus Master, the CS4610/11 generates the Mem- ory Read Multiple and Memory Write transactions. The Memory Read, Configuration Read, Configu- ration Write, Memory Read Line, Memory Write and Invalidate, I/O Read, I/O Write, Interrupt Ac- knowledge, Special Cycles, and Dual Address Cy- cle transactions are not generated. |
同様の部品番号 - CS4610 |
|
同様の説明 - CS4610 |
|
|
リンク URL |
プライバシーポリシー |
ALLDATASHEET.JP |
ALLDATASHEETはお客様のビジネスに役立ちますか? [ DONATE ] |
Alldatasheetは | 広告 | お問い合わせ | プライバシーポリシー | リンク交換 | メーカーリスト All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |