R5S72011 RENESAS [Renesas Technology Corp], R5S72011 Datasheet - Page 304

• Manufacturer Part Number: R5S72011
• Description: 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7200 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 9 Bus State Controller (BSC)
(13) External Address/SDRAM Address Signal Multiplex
(a)
Either of addresses used for accessing external device or SDRAM is output through external
address pins. The SDRAM address is shifted internally by changing the settings of DDBW and
DSZ in SDmADR and BSIZE in SDCmCNT. The bank address is output on A16 and A15 and the
address is output on A14 to A2.
Table 9.16 External Address/SDRAM Address Pins
(b) Address Register Setting Value and Supported SDRAM Configuration
Tables 9.17 to 9.19 are the SDRAM configurations that to support for 8-, 16-, or 32-bit bus width.
These tables are featured to ease the understanding of the relationships between the SDRAM to
support and address multiplex.
Addresses addr27 to addr0 are the logical addresses used by the CPU and DMAC in access to the
SDRAM. The table below shows how the settings of DSZ and DDBW determine which signals
are output on the SDRAM-access pins.
Rev. 2.00 Sep. 07, 2007 Page 276 of 1164
REJ09B0321-0200
Pin Name
A27
A26
A25
A24
A23
A22
A21
A20
A19
A18
A17
A16 (/BA1)
A15 (/BA0)
A14 (/MA12) External address/SDRAM address
Address Multiplex
Function
External address
External address
External address
External address
External address
External address
External address
External address
External address
External address
External address
External address/SDRAM bank address
External address/SDRAM bank address
Pin Name
A13 (/MA11) External address/SDRAM address
A12 (/MA10) External address/SDRAM address
A11 (/MA9)
A10 (/MA8)
A9 (/MA7)
A8 (/MA6)
A7 (/MA5)
A6 (/MA4)
A5 (/MA3)
A4 (/MA2)
A3 (/MA1)
A2 (/MA0)
A1
A0
Function
External address/SDRAM address
External address/SDRAM address
External address/SDRAM address
External address/SDRAM address
External address/SDRAM address
External address/SDRAM address
External address/SDRAM address
External address/SDRAM address
External address/SDRAM address
External address/SDRAM address
External address
External address