Cypress FM4 Series - Page 795

CHAPTER 14: External Bus Interface
FM4 Peripheral Manual, Doc. No. 002-04856 Rev. *E 795
16-bit SRAM
Figure 4-3 shows an example of connecting a 16-bit SRAM.
Figure 4-3 Example of 16-bit SRAM Connection
This LSI
X16 SRAM
MAD [24:1]
MCSX [0]
MOEX
MWEX
MDQM [1:0]
MADATA [15:0]
A
CS
OE
WE
DQM [1:0]
DQ [15:0]
In the case where a target device employs a byte mask signal, using the MDQM control will read the data
only required for the device. This resulted in reducing the power consumption while accessing.
N-word x 8-bit NAND
Figure 4-4 shows an example of connecting an N-word x 8-bit NAND Flash memory.
Figure 4-4 Example of 8-bit NAND Flash Memory Connection
MCSX[0]
MNCLE
CS
CLE
ALE
DQ[7:0]
N word x 8bit
NAND Flash
MADATA[7:0]
MNALE
REMNREX
WEMNWEX
This LSI
16-bit SRAM