r5s72060w200fpv Renesas Electronics Corporation., r5s72060w200fpv Datasheet - Page 36

• Manufacturer Part Number: r5s72060w200fpv
• Description: 32-bit Risc Microcomputer Superhtm Risc Engine Family / Sh7200 Series
• Manufacturer: Renesas Electronics Corporation.

Section 1 Overview
Rev. 2.00 Dec. 09, 2005 Page 12 of 1152
REJ09B0191-0200
Classification
Bus control
Symbol
WE1
WE2
WE3
DQMLL
DQMLU
DQMUL
DQMUU
RASU, RASL
CASU, CASL
CKE
CE1A, CE1B
CE2A, CE2B
ICIOWR
ICIORD
WE
IOIS16
REFOUT
O
O
O
O
O
O
O
O
O
O
O
O
O
I
O
I/O
O
O
Name
Byte select
Byte select
Byte select
Byte select
Byte select
Byte select
Byte select
RAS
CAS
CK enable
Lower byte select
for PCMCIA card
Upper byte select
for PCMCIA card
Write strobe for
PCMCIA I/O
Read strobe for
PCMCIA I/O
Write strobe for
PCMCIA memory
PCMCIA dynamic
bus sizing
Refresh request
Function
Indicates a write access to bits 15 to
8 of data of external memory or
device.
Indicates a write access to bits 23 to
16 of data of external memory or
device.
Indicates a write access to bits 31 to
24 of data of external memory or
device.
Selects bits D7 to D0 when SDRAM
is connected.
Selects bits D15 to D8 when SDRAM
is connected.
Selects bits D23 to D16 when
SDRAM is connected.
Selects bits D31 to D24 when
SDRAM is connected.
Connected to the RAS pin when
SDRAM is connected.
Connected to the CAS pin when
SDRAM is connected.
Connected to the CKE pin when
SDRAM is connected.
Connected to PCMCIA card select
signals D7 to D0.
Connected to PCMCIA card select
signals D15 to D8.
Connected to the PCMCIA I/O write
strobe signal.
Connected to the PCMCIA I/O read
strobe signal.
Connected to the PCMCIA memory
write strobe signal.
Fix it low.
Request signal for refresh execution.