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參數(shù)資料
| 型號： | W9960CF |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 消費家電 |
| 英文描述： | A Single Chip Multiprotcol High Performance Video CODEC(單片多協(xié)議高性能視頻編解碼器) |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP208 |
| 封裝： | PLASTIC, QFP-208 |
| 文件頁數(shù)： | 14/65頁 |
| 文件大小： | 368K |
| 代理商： | W9960CF |
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W9960CF
Winbond Confidential
14
June 1997
3.3 VRISC
VRISC contains a 4-staged pipeline: Instruction Fetch (IF), Instruction Decoding (DEC),
Operand Execution (EXE), and Result Write-Back (WB), and a 16-bit ALU with Integer
Multiplication and Division. It uses a built-in 1K-byte Data RAM and a 4.5Kx22 bit Instruction
RAM to which the firmware program can be downloaded from the host processor. This VRISC
contains a tri-port (2-read/1-write) 32x16 bit Register File and 32 interrupt vectors.
Interrupt
control
Program
Counter
control
IRAM
control
Instruction
RAM
Decoder
Exec. Inst. Reg.
wp
rp
Arbiter
WB Inst. Reg. 1
WB Inst. Reg. 2
mux
src1
mux
src2
Register
File
imm
ALU
mux
mux
Decoding Inst. Reg.
int1
int8
Instruction
Fetch
Decoding
Execution
Write
Back
RISC Bus
mux
ALU Result Reg.
Address Spaces
VRISC has two address spaces: the Program Address Space and the Data Memory Address
Space. The following figure illustrates the layout of the booting address, interrupt vector address
space in the main program address space. Program always start from booting address ( 0000H )
after the host enables VRISC. Address 0001H through 001FH stores Interrupt vector for
Interrupt service routines. Figure 2 illustrates the layout of the registers, Data Memory (DM),
external DRAM address space in the main data memory address space. Address 000000H
through 0001FFH is for VRISC Register File referencing, address 000200H through 0003FFH is
for internal DM memory accessing, and address 000400H through 1FFFFFH is for external
DRAM accessing. VRISC cannot access the external DRAM from address 000000H through
0003FFH since this address space are reserved for internal registers and DM memory.
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PDF描述 |
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| W9961CF | H.263/H.261 Video Codec |
| W9967BCF | JPEG USB Camera Chip(運用JPEG壓縮技術(shù)和通用串行總線結(jié)構(gòu)技術(shù)的照相電路數(shù)字處理芯片的攝像照相機接口控制器) |
| W9967CF | JPEG USB Camera Chip(運用JPEG壓縮技術(shù)和通用串行總線結(jié)構(gòu)技術(shù)的照相電路數(shù)字處理芯片的攝像照相機接口控制器) |
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| W9971CF | Integrated Video Graphics Accelerator(集成的視頻圖形加速器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W9961CF | 制造商:WINBOND 制造商全稱:Winbond 功能描述:H.263/H.261 Video Codec |
| W9966CF | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| W9966TF | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| W99681CF | 制造商:WINBOND 制造商全稱:Winbond 功能描述:JPEG USB Dual Mode Camera Chip |
| W99685 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
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