Memory Connection Example - Fujitsu FR60 Hardware Manual

CHAPTER 4 EXTERNAL BUS INTERFACE
4.9.5

Memory Connection Example

This section shows the memory connection example.
■ Memory Connection Example
The SDRAM/FCRAM interface is connected to SDRAM/FCRAM as shown in Table 4.9-1 in
principle.
Table 4.9-1 SDRAM/FCRAM Interface to SDRAM/FCRAM Connection Table
SDRAM/
FCRAM
interface
pin
MCLK
MCLKE
SRAS (AS)
SCAS (BAA)
SWE (WR)
CS6 or CS7
A00 to A09
A10/AP
A11 to A13
A14
A15
D31 to D00
DQMUU,
DQMUL,
DQMLU,
DQMLL
232
SDRAM/
FCRAM pin
CLK
CKE
RAS
CAS
WE
CS Only the CS6/CS7 area can be set as SDRAM/FCRAM
space.
A00 to A09 Addresses do not have to be shifted depending on the bus
width.
A10/AP A10 for row address output; otherwise AP
A11 to A13 Connected to the address used for SDRAM/FCRAM.
BA0 BA for 2 bank product
BA1 The pin is not used for a two-bank module.
DQ The connection changes depending on the endian method
and data bus width.
For detailed connection, see Section "4.4 Endian and Bus
Access".
DQM The connection changes depending on the endian method
and data bus width.
For detailed connection, see Section "4.4 Endian and Bus
Access".
Remarks