11
GPMC
gpmc_a[11:1]
Device
gpmc_d[15:0]
gpmc_ncs[7:0]
gpmc_nadv_ale
gpmc_noe
gpmc_nwe
gpmc_nbe0_cle
gpmc_nbe1
gpmc_nwp
gpmc_wait[3:0]
External device/
memory
ADD/D[15:0]
nADV
WAIT
nWE
nOE
nWP
nCE
A[26:16]
16
A[27:17]
nCS[7:0]
nADV/ALE
nOE/nRE
nWE
nBE0/CLE
nBE0/CLE
nBE1
nBE1
nWP
WAIT[3..0]
CLK
gpmc_clk
CLK
gpmc−002
A[16:1]/D[15:0]
Public Version
www.ti.com
General-Purpose Memory Controller
•
Synchronous read/write access
•
Synchronous read/write burst access without wrap capability (4, 8, 16 Word16)
•
Synchronous read/write burst access with wrap capability (4, 8, 16 Word16)
•
Address/data-multiplexed access
•
Little- and big-endian access
The GPMC can communicate with a wide range of external devices:
•
External asynchronous or synchronous 8-bit wide memory or device (non-burst device)
•
External asynchronous or synchronous 16-bit wide memory or device
•
External 16-bit nonmultiplexed device with limited address range (2 Kbytes)
•
External 16-bit address/data-multiplexed NOR flash device
•
External 8-bit and 16-bit NAND flash device
•
External 16-bit pseudo-static random access memory (pSRAM) device
The GPMC supports up to eight chip-select regions of programmable size, and programmable base
addresses in a total address space of 1 Gbyte.
10.1.2 GPMC Environment
and
show two GPMC external connection options:
•
GPMC to 16-bit address/data-multiplexed memory
shows a connection between the GPMC and a 16-bit synchronous
address/data-multiplexed external memory device.
•
GPMC to 16-bit NAND device
shows a connection between the GPMC and a 16-bit NAND device.
Figure 10-2. GPMC to 16-Bit Address/Data-Multiplexed Memory
2115
SWPU177N – December 2009 – Revised November 2010
Memory Subsystem
Copyright © 2009–2010, Texas Instruments Incorporated
Содержание OMAP36 Series
Страница 174: ...174 List of Tables SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 692: ...692 MPU Subsystem SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 1084: ...1084 IVA2 2 Subsystem SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 1990: ...1990 2D 3D Graphics Accelerator SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 2334: ...2334 Memory Subsystem SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 2700: ...2700 Memory Management Units SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 2868: ...2868 HDQ 1 Wire SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 2974: ...2974 UART IrDA CIR SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3054: ...3054 Multichannel SPI SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3462: ...3462 MMC SD SDIO Card Interface SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3508: ...3508 General Purpose Interface SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3584: ...3584 Initialization SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3648: ...3648 Debug and Emulation SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...