Preliminary
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Use Cases And Tips
5.4.2 How to Choose a Suitable Memory to Use With the GPMC
This section is intended to help the user select a suitable memory device to interface with the GPMC
controller.
5.4.2.1
Supported Memories or Devices
NAND flash and NOR flash architectures are the two flash technologies. The GPMC supports various
types of external memory or device, basically any one that supports NAND or NOR protocols:
•
8- and 16-bit width asynchronous or synchronous memory or device (8-bit: non burst device only)
•
16-bit address and data multiplexed NOR flash devices (pSRAM, , ...)
•
8- and 16-bit NAND flash device
5.4.2.2
Memory Pin Multiplexing
This section highlights the interfacing differences of the GPMC supported memories (see
Table 5-52. Supported Memory Interfaces
16-bit
16-bit
Address/Data
Function
Address/Data
OneNAND
16-bit NAND
8-bit NAND
Muxed pSRAM or
Non-Muxed Flash
NOR Flash
GPMC_A[27]
A28
A28
GPMC_A[26]
A27
A27
GPMC_A[25]
A26
A26
GPMC_A[24]
A25
A25
GPMC_A[23]
A24
A24
GPMC_A[22]
A23
A23
GPMC_A[21]
A22
A22
GPMC_A[20]
A21
A21
GPMC_A[19]
A20
A20
GPMC_A[18]
A10
A10
GPMC_A[17]
A18
A18
GPMC_A[16]
A17
A17
GPMC_A[15]
A16
GPMC_A[14]
A15
GPMC_A[13]
A14
GPMC_A[12]
A13
GPMC_A[11]
A12
GPMC_A[10]
A11
GPMC_A[9]
A10
GPMC_A[8]
A9
GPMC_A[7]
A8
GPMC_A[6]
A7
GPMC_A[5]
A6
GPMC_A[4]
A5
GPMC_A[3]
A4
GPMC_A[2]
A3
GPMC_A[1]
A2
GPMC_A[0]
A1
GPMC_D[15]
D15 or A16
D15 or A16
D15 or A16
IO15
GPMC_D[14]
D14 or A15
D14 or A15
D14 or A15
IO14
GPMC_D[13]
D13 or A14
D13 or A14
D13 or A14
IO13
659
SPRUGX9 – 15 April 2011
General-Purpose Memory Controller (GPMC)
© 2011, Texas Instruments Incorporated
Содержание TMS320C6A816 Series
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