R5S72011 RENESAS [Renesas Technology Corp], R5S72011 Datasheet - Page 42

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

Section 1 Overview
Rev. 2.00 Sep. 07, 2007 Page 14 of 1164
REJ09B0321-0200
Classification
Bus control
Symbol
BC0
BC1
BC2
BC3
DQM0
DQM1
DQM2
DQM3
SDCS1,
SDCS0
SDRAS
SDCAS
SDWE
SDCKE
SDCLK
I/O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
Name
Byte select
Byte select
Byte select
Byte select
Byte select
Byte select
Byte select
Byte select
Chip select
RAS
CAS
WE
CK enable
Clock output
Function
Selects bits 7 to 0 of data of external
memory or device. (For an access in
units of 8, 16, or 32 bits)
Selects bits 15 to 8 of data of
external memory or device. (For an
access in units of 16 or 32 bits)
Selects bits 23 to 16 of data of
external memory or device. (For an
access in units of 32 bits)
Selects bits 31 to 24 of data of
external memory or device. (For an
access in units of 32 bits)
Selects bits D7 to D0 when SDRAM
is connected. (For an access in units
of 8, 16, or 32 bits)
Selects bits D15 to D8 when SDRAM
is connected. (For an access in units
of 16 or 32 bits)
Selects bits D23 to D16 when
SDRAM is connected. (For an
access in units of 32 bits)
Selects bits D31 to D24 when
SDRAM is connected. (For an
access in units of 32 bits)
Pins connected to the CS pins of
SDRAM
Pin connected to the RAS pin of
SDRAM
Pin connected to the CAS pin of
SDRAM
Pin connected to the WE pin of
SDRAM
Pin connected to the CKE pin of
SDRAM
Pin connected to the CLK pin of
SDRAM