Texas Instruments OMAP5912 Reference Manual page 887

Figure 23. Software NFC with Non-multiplexed NOR and CFC
OMAP5912
FLASH.A[17:25]
FLASH.A[1:16]
FLASH.D[0:15]
FLASH.OE
FLASH.WE
FLASH.WP
FLASH.RDY
FLASH.BE[0]
FLASH.BE[1]
FLASH.CS3
FLASH.CS2
FLASH.CS1
CFLASH.CD1
CFLASH.CD2
CFLASH.IOIS16
CFLASH.IREQ
CFLASH.RESET
SPRU756A
Up to 64MB memory space for each CS
Async NOR_FLASH
NF controller is a software solution
so we can get a solution with 16 I/O
NAND_FLASH
FLASH.D[0:7]
I/O[1:8]
CE
RD
WE
FLASH.A[1]
CLE
FLASH.A[2]
ALE
WP
RD/BUSY
FLASH.A[11]
FLASH.A[12]
FLASH.A[13]
FLASH.A[14].FLASH.A[1:10]
Software NAND Flash Controller
FLASH.A[1:25]
FLASH.D[0:15]
I/O
FLASH.OE
core
FLASH.WE
FLASH.WP
FLASH.CS
I/O
core
CompactFlash
CF_nIORD
CF_nIOIWR
CF_nREG
CF_ADD[0:10]
CF_DATA[0:15]
CF_NBE0
Level
CF_NBE1
CF_NOE
shifter
CF_NWE
CF_nWAIT
CF_nCD1
CF_nCD2
CFLASH.IOIS16
CFLASH.IREQ
CFLASH.RESET
Memory Interfaces 81