Texas Instruments DM6467 Digital Video Evaluation Module TMDXEVM6467T TMDXEVM6467T 데이터 시트
제품 코드
TMDXEVM6467T
SPRS605C – JULY 2009 – REVISED JUNE 2012
7.9
External Memory Interface (EMIF)
DM6467T supports several memory and external device interfaces, including:
•
Asynchronous EMIF (EMIFA) for interfacing to NOR Flash, SRAM, etc.
•
NAND Flash
•
ATA (see
, ATA Controller)
7.9.1
Asynchronous EMIF (EMIFA)
The DM6467T Asynchronous EMIF (EMIFA) provides an 8-bit or 16-bit data bus, an address bus width up
to 24 bits, and 4 chip selects, along with memory control signals. These signals are multiplexed between
these peripherals:
to 24 bits, and 4 chip selects, along with memory control signals. These signals are multiplexed between
these peripherals:
•
EMIFA and NAND interfaces
•
ATA interface
•
Host-Port Interface (HPI)
•
PCI
•
GPIO
7.9.2
NAND (NAND, SmartMedia/SSFDC, xD)
The EMIFA interface provides both the asynchronous EMIF and NAND interfaces. Four chip selects are
provided and each are individually configurable to provide either EMIFA or NAND support. The NAND
features supported are as follows.
provided and each are individually configurable to provide either EMIFA or NAND support. The NAND
features supported are as follows.
•
NAND flash on up to 4 asynchronous chip selects
•
8- or 16-bit data bus width
•
Programmable cycle timings
•
Performs ECC calculation
•
NAND Mode also supports SmartMedia/SSFDC (Solid State Floppy Disk Controller) and xD memory
cards
cards
•
ARM ROM supports booting of the DM6467T ARM926 processor from NAND flash located at CS2
The memory map for EMIFA and NAND registers is shown in
. For more details on the EMIFA
and NAND interfaces, the TMS320DM646x DMSoC Asynchronous External Memory Interface (EMIF)
User's Guide (literature number
User's Guide (literature number
7.9.3
EMIFA Peripheral Register Description(s)
shows the EMIFA/NAND registers.
Copyright © 2009–2012, Texas Instruments Incorporated
Peripheral Information and Electrical Specifications
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