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參數(shù)資料
| 型號： | STV0684 |
| 廠商： | 意法半導體 |
| 英文描述： | Digital Camera Processor |
| 中文描述： | 數(shù)碼相機處理器 |
| 文件頁數(shù)： | 18/49頁 |
| 文件大?。?/td> | 487K |
| 代理商： | STV0684 |
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Functional Description
STV0684
18/49
3.5
Memory interface
Description
The memory control Block provides dedicated support for embedded SRAM, external SDRAM,
NAND, Smartmedia and Compact Flash (via SFP pins).
Embedded SRAM
●
Full-speed random read/write access from the ST20 to embedded SRAM
●
Full-speed embedded SRAM address generation for real-time data writes from the compression
engine, the Video Processor block, SPI, the audio block and the USB module
●
Full-speed embedded SRAM address generation for data reads to the DMA out FIFO
Selection of the source/destination modules is managed by firmware.
External SDRAM
●
ST20 memory mapped accesses to external SDRAM
●
Full-speed embedded SDRAM address generation for real-time data writes from VDFIF (for VC
and VP modules) or DMA out FIFO
●
Full-speed external SDRAM address generation/control to DMA out FIFO, TV FIFO, LCD FIFO
or VP FIFO’s
●
Operation with PC100 (or better e.g. PC133)
and JEDEC Standard No. 21-C
compliant devices
and supports 64MB, 128MB, 256MB and 512MB parts with a 16-bit bus width
Mass storage media support
●
Compact-flash support
●
SmartMedia Card support
●
NAND flash memory with a 512B+16 page organization, ECC done by hardware, 32Mbit to
1Gbit devices
●
Support for Multi-Media card and Secure Digital with the SPI interface
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