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SH7708 数据表(PDF) 592 Page - Renesas Technology Corp

部件名 SH7708
功能描述  SuperH??RISC engine
PDF  633 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  RENESAS [Renesas Technology Corp]
网页  http://www.renesas.com
标志 RENESAS - Renesas Technology Corp

SH7708 数据表(HTML) 592 Page - Renesas Technology Corp

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574
Table A.7
Pin States (DRAM/Little-Endian)
16-Bit Bus Width (Area 3)
16-Bit Bus Width (Area 2)
Pin
Byte Access
(Address
2n)
Byte Access
(Address
2n + 1)
Word/
Longword
Access
Byte Access
(Address
2n)
Byte Access
(Address
2n + 1)
Word/
Longword
Access
CS6 to CS0
Enabled
Enabled
Enabled
Enabled
Enabled
Enabled
RD
R
High
High
High
High
High
High
W
High
High
High
High
High
High
RD/
WR
R
High
High
High
High
High
High
W
Low
Low
Low
Low
Low
Low
BS
Enabled
Enabled
Enabled
Enabled
Enabled
Enabled
RAS/CE
Low
Low
Low
High
High
High
CAS/CASLL/OE
Low
High
Low
High
High
High
CASLH
High
Low
Low
High
High
High
CASHL/CAS2L
High
High
High
Low
High
Low
CASHH/CAS2H
High
High
High
High
Low
Low
DQMLL/
WE0
R
High
High
High
High
High
High
W
High
High
High
High
High
High
DQMLU/
WE1
R
High
High
High
High
High
High
W
High
High
High
High
High
High
DQMUL/
WE2/ICIORD
R
High
High
High
High
High
High
W
High
High
High
High
High
High
DQMUU/
WE3/ICIOWR R
High
High
High
High
High
High
W
High
High
High
High
High
High
MD3/
CE2A
High-Z or
high*1
High-Z or
high*1
High-Z or
high*1
High-Z or
high*1
High-Z or
high*1
High-Z or
high*1
MD4/
CE2B
High-Z or
high*2
High-Z or
high*2
High-Z or
high*2
High-Z or
high*2
High-Z or
high*2
High-Z or
high*2
MD5/
RAS2
High-Z or
high*3
High-Z or
high*3
High-Z or
high*3
Low
Low
Low
CKE
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
WAIT
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
IOIS16
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
A25 to A0
Address
Address
Address
Address
Address
Address
D7 to D0
Valid data
Invalid data Valid data
Valid data
Invalid data Valid data
D15 to D8
Invalid data Valid data
Valid data
Invalid data Valid data
Valid data



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