SH7080_09 Datasheet, PDF (76/1622 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family

Section 1 Overview
Classification Symbol
Bus control
RASL
RASU
CASL
CASU
CKE
DQMUU
DQMUL
DQMLU
DQMLL
CE1A
CE1B
I/O Name
Function
O RAS
Connected to the RAS pin of the
SDRAM.
O RAS
Connected to the RAS pin of the
SDRAM.
Available only in the
SH7085/SH7086.
O CAS
Connected to the CAS pin of the
SDRAM.
O CAS
Connected to the CAS pin of the
SDRAM.
Available only in the
SH7085/SH7086.
O Clock enable
Connected to the CKE pin of the
SDRAM.
O HH byte selection Selects bits 31 to 24 of the SDRAM
data bus.
Available only in the
SH7085/SH7086.
O HL byte selection Selects bits 23 to 16 of the SDRAM
data bus.
Available only in the
SH7085/SH7086.
O Upper byte
selection
Selects bits 15 to 8 of the SDRAM
data bus.
O Lower byte
selection
Selects bits 7 to 0 of the SDRAM
data bus.
O Lower byte
Chip enable for PCMCIA connected
selection for
to area 5
PCMCIA card _{Available only in the}
SH7085/SH7086.
O Lower byte
Chip enable for PCMCIA connected
selection for
to area 6
PCMCIA card _{Available only in the}
SH7085/SH7086.
Rev. 4.00 Dec. 15, 2009 Page 16 of 1558
REJ09B0181-0400