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SH7708 数据表(PDF) 584 Page - Renesas Technology Corp |
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SH7708 数据表(HTML) 584 Page - Renesas Technology Corp |
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584 / 633 page ![]() 566 Table A.4 Pin States (Normal Memory/Big-Endian) (cont) 32-Bit Bus Width Pin Byte Access (Address 4n) Byte Access (Address 4n + 1) Byte Access (Address 4n + 2) Byte Access (Address 4n + 3) Word Access (Address 4n) Word Access (Address 4n + 2) Longword Access CS6 to CS0 Enabled Enabled Enabled Enabled Enabled Enabled Enabled RD R Low Low Low Low Low Low Low 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 Enabled Enabled Enabled Enabled Enabled Enabled Enabled RAS/CE High High High High High High High CAS/CASLL/OE High High High High High High High CASLH High High High High High High High CASHL/CAS2L High High High High High High High CASHH/CAS2H High High High High High High High DQMLL/ WE0 R High High High High High High High W High High High Low High Low Low DQMLU/ WE1 R High High High High High High High W High High Low High High Low Low DQMUL/ WE2/ICIORD R High High High High High High High W High Low High High Low High Low DQMUU/ WE3/ICIOWR R High High High High High High High W Low High High High Low High Low 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 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 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 High-Z or high*3 High-Z or high*3 High-Z or high*3 CKE Disabled Disabled Disabled Disabled Disabled Disabled Disabled WAIT Enabled*4 Enabled*4 Enabled*4 Enabled*4 Enabled*4 Enabled*4 Enabled*4 IOIS16 Disabled Disabled Disabled Disabled Disabled Disabled Disabled A25 to A0 Address Address Address Address Address Address Address D7 to D0 Invalid data Invalid data Invalid data Valid data Invalid data Valid data Valid data |
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