參數資料
型號: TMS320DM355_07
廠商: Texas Instruments, Inc.
英文描述: Digital Media System-on-Chip (DMSoC)
中文描述: 數字媒體系統(tǒng)芯片(DMSoC)
文件頁數: 106/158頁
文件大?。?/td> 1319K
代理商: TMS320DM355_07
www.ti.com
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5.7 External Memory Interface (EMIF)
5.7.1
Asynchronous EMIF (AEMIF)
TMS320DM355
Digital Media System-on-Chip (DMSoC)
SPRS463B–SEPTEMBER 2007–REVISED OCTOBER 2007
DM355 supports several memory and external device interfaces, including:
Asynchronous EMIF (AEMIF) for interfacing to SRAM.
OneNAND flash memories
NAND flash memories
The EMIF supports the following features:
SRAM, etc. on up to 2 asynchronous chip selects addressable up to 64KB each
Supports 8-bit or 16-bit data bus widths
Programmable asynchronous cycle timings
Supports extended wait mode
Supports Select Strobe mode
5.7.1.1
NAND (NAND, SmartMedia, xD)
The NAND features of the EMIF are as follows:
NAND flash on up to 2 asynchronous chip selects
8 and 16-bit data bus widths
Programmable cycle timings
Performs 1-bit and 4-bit ECC calculation
NAND Mode also supports SmartMedia/SSFDC (Solid State Floppy Disk Controller) and xD memory
cards
5.7.1.2
OneNAND
The OneNAND features supported are as follows.
NAND flash on up to 2 asynchronous chip selects
Only 16-bit data bus widths
Supports asynchronous writes and reads
Supports synchronous reads with continuous linear burst mode (Does not support synchronous reads
with wrap burst modes)
Programmable cycle timings for each chip select in asynchronous mode
DM355 Peripheral Information and Electrical Specifications
106
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