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SH7708 bảng dữ liệu(PDF) 580 Page - Renesas Technology Corp

tên linh kiện SH7708
Giải thích chi tiết về linh kiện  SuperH??RISC engine
PDF  633 Pages
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nhà sản xuất  RENESAS [Renesas Technology Corp]
Trang chủ  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

SH7708 bảng dữ liệu(HTML) 580 Page - Renesas Technology Corp

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562
A.4
Pin States in Access to Each Address Space
Table A.3
Pin States (Normal Memory/Little-Endian)
8-Bit Bus Width
16-Bit Bus Width
Pin
Byte/Word/Long-
word Access
Byte Access
(Address 2n)
Byte Access
(Address 2n + 1)
Word/Longword
Access
CS6 to CS0
Enabled
Enabled
Enabled
Enabled
RD
R
Low
Low
Low
Low
W
High
High
High
High
RD/
WR
R
High
High
High
High
W
Low
Low
Low
Low
BS
Enabled
Enabled
Enabled
Enabled
RAS/CE
High
High
High
High
CAS/CASLL/OE
High
High
High
High
CASLH
High
High
High
High
CASHL/CAS2L
High
High
High
High
CASHH/CAS2H
High
High
High
High
DQMLL/
WE0
R
High
High
High
High
W
Low
Low
High
Low
DQMLU/
WE1
R
High
High
High
High
W
High
High
Low
Low
DQMUL/
WE2/ICIORD
R
High
High
High
High
W
High
High
High
High
DQMUU/
WE3/ICIOWR R
High
High
High
High
W
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
MD4/
CE2B
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
High-Z or high*3
CKE
Disabled
Disabled
Disabled
Disabled
WAIT
Enabled*4
Enabled*4
Enabled*4
Enabled*4
IOIS16
Disabled
Disabled
Disabled
Disabled
A25 to A0
Address
Address
Address
Address
D7 to D0
Valid data
Valid data
Invalid data
Valid data
D15 to D8
High-Z
Invalid data
Valid data
Valid data
D23 to D16/
PORT7 to PORT0
High-Z*5
High-Z*5
High-Z*5
High-Z*5
D31 to D24
High-Z*6
High-Z*6
High-Z*6
High-Z*6



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