STV0684 STMicroelectronics, STV0684 Datasheet - Page 20

• Manufacturer Part Number: STV0684
• Description: IC COPROCESSR VC5700/6700 196BGA
• Manufacturer: STMicroelectronics

Specifications of STV0684

• Applications: *
• Mounting Type: Surface Mount
• Package / Case: 196-BGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 497-3901

Functional Description
3.4
3.4.1
20/30
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
The source/destination module selection is managed by firmware.
External SDRAM
Mass storage media support
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 USB module.
Full-speed embedded SRAM address generation for data reads to the DMA out FIFO.
ST20 memory mapped accesses to external SDRAM
Full-speed embedded SDRAM address generation for real-time data writes from VDFIF
Full-speed external SDRAM address generation/control to DMA out FIFO, TV FIFO, LCD FIFO
or VP FIFO.
Compact-flash support in memory mode
Smartmedia card support
NAND flash memory with a 512B+16 page organization, ECC done by hardware
Support for multi-media card and secure digital with the SPI interface
STV0684