Allwinner A20 - Nand Flash Block Diagram

A20 User Manual (Revision 1.2) Copyright © 2013 Allwinner Technology Co., Ltd. All Rights Reserved. Page 300 / 812
2.2.2. Nand Flash Block Diagram
Sync
Register
File
FIFO
RAM0
(256x32)
ECC
Control
AHB
Slave I/F
Command
FIFO
FIFO
Control
DMA & INT
Control
FIFO
RAM1
(256x32)
NAND Flash Basic Operation
Normal
Comman
d
FSM
Spare
Comman
d
FSM
Batch
Comman
d
FSM
User Data
(8x32)
CE[7:0] CLE ALE WE RE RB[1:0] DO[7:0] DI[7:0]
nfc_clk
domain
ahb_clk
domain