SH7709S Datasheet, PDF (778/807 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer Super RISC engine Family/SH7700 Series

Table A.8 Pin States (Synchronous DRAM/Big Endian)
32-Bit Bus Width
Byte
Byte
Byte
Byte
Word
Word
Pin
Access Access Access Access Access Access Longword
(Address (Address (Address (Address (Address (Address Access
4n)
4n + 1) 4n + 2) 4n + 3)
4n)
4n + 2)
CS6 to CS2, CS0
Enabled Enabled Enabled Enabled Enabled Enabled Enabled
RD
R High
High
High
High
High
High
High
W High
High
High
High
High
High
High
RD/WR
R High
High
High
High
High
High
High
W Low
Low
Low
Low
Low
Low
Low
BS
RAS3U/PTE[2]
RAS3L/PTJ[0]
Enabled Enabled Enabled Enabled Enabled Enabled Enabled
High/Low^*1 High/Low^*1 High/Low^*1 High/Low^*1 High/Low^*1 High/Low^*1 High/Low^*1
Low/High^*1 Low/High^*1 Low/High^*1 Low/High^*1 Low/High^*1 Low/High^*1 Low/High^*1
CASL/PTJ[2]
Low
Low
Low
Low
Low
Low
Low
CASU/PTJ[3]
High
High
High
High
High
High
High
WE0/DQMLL
R High
High
High
Low
High
Low
Low
W High
High
High
Low
High
Low
Low
WE1/DQMLU/WE R High
High
Low
High
High
Low
Low
W High
High
Low
High
High
Low
Low
WE2/DQMUL/
R High
Low
ICIORD/PTK[6]
W High
Low
High
High
Low
High
High
Low
High
Low
High
Low
WE3/DQMUU/
ICIOWR/PTK[7]
R Low
W Low
High
High
High
Low
High
High
High
Low
High
Low
High
Low
CE2A/PTE[4]
High
High
High
High
High
High
High
CE2B/PTE[5]
CKE/PTK[5]
High
High^*2
High
High^*2
High
High^*2
High
High^*2
High
High^*2
High
High^*2
High
High^*2
WAIT
Disabled Disabled Disabled Disabled Disabled Disabled Disabled
IOIS16/PTG[7]
Disabled Disabled Disabled Disabled Disabled Disabled Disabled
A25 to A0
Address Address Address Address Address Address Address
command command command command command command command
D7 to D0
Invalid
data
Invalid
data
Invalid
data
Valid
data
Invalid
data
Valid
data
Valid
data
D15 to D8
Invalid
data
Invalid
data
Valid
data
Invalid
data
Invalid
data
Valid
data
Valid
data
D23 to D16
Invalid
data
Valid
data
Invalid
data
Invalid
data
Valid
data
Invalid
data
Valid
data
D31 to D24
Valid
data
Invalid
data
Invalid
data
Invalid
data
Valid
data
Invalid
data
Valid
data
Notes: 1. Lower 32-MB access/ Upper 32-MB access/64-MB access
2. Normally high. Low in self-refreshing.
Rev. 5.00, 09/03, page 734 of 760