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EDW1032BBBG-70-F Datasheet(PDF) 9 Page - Elpida Memory |
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EDW1032BBBG-70-F Datasheet(HTML) 9 Page - Elpida Memory |
9 / 16 page EDW1032BBBG Data Sheet E1771E11 (Ver. 1.1) 9 1.6 Commands Table 6: Command Truth Table Notes: 1. H = logic high level; L = logic low level; X = Don’t Care. Signal may be H or L, but not floating. 2. Addresses shown are logical addresses; physical addresses are inverted when address bus inversion (ABI) is activated and /ABI=L. 3. BA0-BA3 provide the Mode Register address (MRA), A0-A11 the opcode to be loaded. 4. BA0-BA3 provide the bank address (BA), A0-A11 provide the row address (RA). 5. BA0-BA3 provide the bank address, A0-A5 (A6) provide the column address (CA); no sub-word addressing within a burst of 8. 6. This command is REFRESH when /CKE(n) = L, and SELF-REFRESH ENTRY when /CKE(n) is H. 7. BA0-BA3 and CA are used to select burst location (BST) and data, respectively. 8. DESELECT and NO OPERATION are functionally interchangeable. 9. In address training mode READ is decoded from the command pins only with /RAS = H, /CAS = L, /WE= H. Operation Code /CKE n-1 /CKE n /CS /RAS /CAS /WE BA3- BA0 A11 A10 A8 A6-A7, A9 A0-A5 (A6) Note DESELECT DESEL L X H X X X X XXXX X 2,8 NO OPERATION (NOP) NOP L X L H H H X XXXX X 2,8 MODE REGISTER SET MRS L L L L L L MRA OPCODE 2,3 ACTIVATE ACT L L L L H H BA RA 2,4 READ RD L L L H L H BA L L L X CA 2,5,9 READ with Autoprecharge RDA L L L H L H BA L L H X CA 2,5 LOAD FIFO LDFF L L L H L H BST H L L DATA 2,7 READ TRAINING RDTR L L L H L H X H H L X X 2 WRITE without Mask WR L L L H L L BA L L L X CA 2,5 WRITE without Mask with Autoprecharge WRA L L L H L L BA L L H X CA 2,5 WRITE with Single Byte Mask WSM L L L H L L BA L H L X CA 2,5 WRITE with Autoprecharge, Single Byte Mask WSMA L L L H L L BA L HHX CA 2,5 WRITE with Double Byte Mask WDM L L L H L L BA H L L X CA 2,5 WRITE with Autoprecharge, Double Byte Mask WDMA L L L H L L BA HL HX CA 2,5 WRITE TRAINING WRTR L L L H L L X H H L X X 2 PRECHARGE PRE L L L L H L BA X X L X X 2 PRECHARGE ALL PREALL L L L L H L X X X H X X 2 REFRESH REF L L L L L H X XXXX X 6 POWER-DOWN- ENTRY PDE L H H X X X X XXXX X LH H H POWER-DOWN- EXIT PDX H L H X X X X XXXX X LH H H SELF-REFRESH- ENTRY SRE L H L L L H X XXXX X 6 SELF-REFRESH- EXIT SRX H L H X X X X XXXX X LH H H |
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