Nand Flash Memory Interface - Renesas M3A-HS64 User Manual

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2.3.4 NAND Flash Memory Interface

The M3A-HS64 comes standard with an NAND flash memory listed in the table below.
NAND flash memory works at 8-bit mode, and 3.3 V-only single power supply. It is write-protected or write-enabled by system
setting DIP switches.
The SH7264 NAND flash memory controller pin (FLCTL) is also used as the data bus (D15 to D4) and the channel 0 pin of the
Renesas Serial Peripheral Interface (RSPI). When connecting it with NAND flash memory, set SW5-5 to OFF. The figure below
shows the NAND flash memory block diagram. Table 2.3.8 lists the DIP switches setting (SW5-5, and SW6-2).
Part Number
K9F2G08U0A-PCB0
SH7264
PD15-PD8/D15-D8/NAF7-NAF0
PD7/D7/FWE#
PD6/D6/FALE
PD5/D5/FCLE
PD4/D4/FRE#
PF9/A23/RSPCK0/FRB
PF10/A24/SSL00/FCE#
PF11/MOSI0/TIOC3C/SPDIF_IN
PF12/MISO0/TIOC3D/SPDIF_OUT
Note: Pin names in red indicate the function used.
Rev. 1.00 Apr 30, 2009
REJ11J0034-0100
Table 2.3.7 NAND Flash Memory Specifications
Bus Size
256 MB
8-bit
(8-bit x 256 M Words x 1)
Data bus
8
2
NOR flash memory
NAND or RSPI
S1A
D1
S1B
S2A
D2
S2B
S3A
D3
S3B
S4A
D4
S4B
MUX
EN# IN
3.3 V
DIP
SW5-5
Figure 2.3.5 NAND Flash Memory Block Diagram
M3A-HS64 Functions
2.3.4 NAND Flash Memory Interface
Capacity
Random: 25 μs (max.)
Page: 25 ns (min.)
(256 M Words × 8-bit)
3.3 V
I/O7-I/O0
WE#
ALE
3.3 V
CLE
RE#
3.3 V
WP#
DIP
3.3 V
SW6-2
3.3 V
R/B#
CE#
4
Device connected to RSPI
Access Time
K9F2G08U0A
256 MB
2-17