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ACE25C160G Datasheet(PDF) 9 Page - ACE Technology Co., LTD. |
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ACE25C160G Datasheet(HTML) 9 Page - ACE Technology Co., LTD. |
9 / 36 page ACE25C160G Uniform SECTOR Dual and Quad Serial Flash VER 1.5 9 CMP bit The CMP bit is a non-volatile Read/Write bit in the Status Register (S14). It is used in conjunction the SEC-BP0 bits to provide more flexibility for the array protection. Please see the Status registers Memory Protection table for details. The default setting is CMP=0. SUS bit The SUS bit is a read only bit in the status register (S15 ) that is set to 1 after executing an Erase/Program Suspend (75H) command. The SUS bit is cleared to 0 by Erase/Program Resume (7AH) command as well as a power-down, power-up cycle. Commands Description All commands, addresses and data are shifted in and out of the device, beginning with the most significant bit on the first rising edge of SCLK after CS# is driven low. Then, the one-byte command code must be shifted in to the device, most significant bit first on SI, each bit being latched on the rising edges of SCLK. See Table2, every command sequence starts with a one-byte command code. Depending on the command, this might be followed by address bytes, or by data bytes, or by both or none. CS# must be driven high after the last bit of the command sequence has been shifted in. For the command of Read, Fast Read, Read Status Register or Release from Deep Power-Down, and Read Device ID, the shifted-in command sequence is followed by a data-out sequence. CS# can be driven high after any bit of the data-out sequence is being shifted out. For the command of Page Program, Sector Erase, Block Erase, Chip Erase, Write Status Register, Write Enable, Write Disable or Deep Power-Down command, CS# must be driven high exactly at a byte boundary, otherwise the command is rejected, and is not executed. That is CS# must driven high when the number of clock pulses after CS# being driven low is an exact multiple of eight. For Page Program, if at any time the input byte is not a full byte, nothing will happen and WEL will not be reset. |
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