Renesas M3A-HS64, User Manual

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M3A-HS64 Functions
2.3.5 External Serial Flash Memory Interface
Rev. 1.00 Apr 30, 2009
2-19
REJ11J0034-0100
2
2.3.5 External Serial Flash Memory Interface
The M3A-HS64 comes standard with a serial flash memory listed in the table below. The serial flash memory is controlled by the
RSPI built in the SH7264.
The SH7264 RSPI channel 0 pin is also used as the FLCTL pin. When connecting it with serial flash memory, set SW5-5 to ON,
and SW5-6 to OFF.
Serial flash memory is write-protected or write-enabled by the system setting DIP switches.
The figure below shows the serial flash memory block diagram. Table 2.3.10 lists the DIP switch setting (SW5, and SW6).
Table 2.3.9 Serial Flash Memory Specifications
Part Number Interface Capacity Package
AT26DF161A-SU 4-wire serial (RSPI) 2 MB 8-pin, SOP
AT26DF161A
2 MB
SH7264
PF9/A23/ RSPCK0 /FRB
D1
S1A
S1B
D2
S2A
S2B
D3
S3A
S3B
D4
S4A
S4B
MUX
EN# IN
NAND flash memory
SCK (Serial Clock)
SI (Serial Data Input)
2
NAND or RSPI
PF10/A24/ SSL00 /FCE#
WP# (Write Protect)
DIP
SW6-3
3.3 V
DIP
SW5-5
3.3 V
CS# (Chip Select)
SO (Serial Data Output)
HOLD#
3.3 V
D1
S1A
S1B
D2
S2A
S2B
D3
S3A
S3B
D4
S4A
S4B
MUX
EN# IN
DIP
SW5-6
3.3 V
Serial flash memory or
expansion connector
RSPDIF/CD deck interface (M3A-HS64G01)
MTU2 interface (M3A-HS64G02)
4
NOR flash memory
2
3.3 V
PF11/ MOSI0 /TIOC3C/SPDIF_IN
PF12/ MISO0 /TIOC3D/SPDIF_OUT
Expansion connector
3.3 V
3.3 V
PF11
PF12
PF11
PF12
Note: Pin names in red indicate the function used.
Figure 2.3.6 Serial Flash Memory Interface Block Diagram
Table 2.3.10 DIP Switches Setting (SW5, and SW6)
Function
Number
OFF (High) ON (Low)
SW5-5
Connected to the NAND flash memory Connected to the device which is connected to RSPI (default)
SW5-6
Connected to the serial flash memory Connected to the expansion connector
(CD deck/RSPDIF/MTU2 - default)
SW6-3 Serial flash memory is write-enabled (default) Serial flash memory is write-protected