88ALP01 Datasheet, PDF (34/160 Pages) –

88ALP01
Datasheet
Figure 5: NAND Flash Controller Block Diagram
Bus Signals
Bus Interface
and Control
Registers
NAND Interface Control Signals
Read Buffer
Write Buffer
NAND
Interface
State
Machine and
Interface
Signal
Generator
NAND Flash
Device Signals
ECC Checker
and
Generator
Bootup Options
Figure 6: NAND Flash
ID LE
if cmd_vld=1
and rdy =1
COMMAND
C Y C LE
if do_addr _cyc=1
if wr=1
ADDRESS
C Y C LE
if rd=1
READ CYCLE
else back
to IDLE
WRITE CYCLE
if wait_for_bsy=1
WAIT FOR BUSY
N ON- M E M OR Y
READ
if do_addr _cyc=0
and rd =0 & wr=0
back to IDLE
System Data Flow
Data Storage
All NAND Flash access starts with a command. Table 12 shows the command sets for Samsung
Type 1 NAND Flash devices; Table 13 shows the command sets for Samsung Type 2 NAND Flash
devices.
Doc. No. MV-S103921-00 Rev. –
Page 34
Document Classification: Proprietary Information
Copyright © 2007 Marvell
July 17, 2007, Preliminary