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EN25S10 Datasheet(PDF) 20 Page - Eon Silicon Solution Inc.
EON [Eon Silicon Solution Inc.]
EN25S10 Datasheet(HTML) 20 Page - Eon Silicon Solution Inc.
/ 34 page
This Data Sheet may be revised by subsequent versions
©2004 Eon Silicon Solution, Inc.,
or modifications due to changes in technical specifications.
Rev. F, Issue Date: 2011/11/07
Figure 15. Deep Power-down Instruction Sequence Diagram
Release from Deep Power-down and Read Device ID (RDI)
Once the device has entered the Deep Power-down mode, all instructions are ignored except the
Release from Deep Power-down and Read Device ID (RDI) instruction. Executing this instruction takes
the device out of the Deep Power-down mode.
Please note that this is not the same as, or even a subset of, the JEDEC 16-bit Electronic Signature
that is read by the Read Identifier (RDID) instruction. The old-style Electronic Signature is supported for
reasons of backward compatibility, only, and should not be used for new designs. New designs should,
instead, make use of the JEDEC 16-bit Electronic Signature, and the Read Identifier (RDID) instruction.
When used only to release the device from the power-down state, the instruction is issued by driving
the CS# pin low, shifting the instruction code “ABh” and driving CS# high as shown in Figure 16. After
the time duration of tRES1 (See AC Characteristics) the device will resume normal operation and other
instructions will be accepted. The CS# pin must remain high during the tRES1 time duration.
When used only to obtain the Device ID while not in the power-down state, the instruction is initiated by
driving the CS# pin low and shifting the instruction code “ABh” followed by 3-dummy bytes. The Device
ID bits are then shifted out on the falling edge of CLK with most significant bit (MSB) first as shown in
Figure 17. The Device ID value for the EN25S10 are listed in Table 5. The Device ID can be read
continuously. The instruction is completed by driving CS# high.
When Chip Select (CS#) is driven High, the device is put in the Stand-by Power mode. If the device
was not previously in the Deep Power-down mode, the transition to the Stand-by Power mode is
immediate. If the device was previously in the Deep Power-down mode, though, the transition to the
Standby Power mode is delayed by tRES2, and Chip Select (CS#) must remain High for at least tRES2
(max), as specified in Table 11. Once in the Stand-by Power mode, the device waits to be selected, so
that it can receive, decode and execute instructions.
Except while an Erase, Program or Write Status Register cycle is in progress, the Release from Deep
Power-down and Read Device ID (RDI) instruction always provides access to the 8bit Device ID of the
device, and can be applied even if the Deep Power-down mode has not been entered.
Any Release from Deep Power-down and Read Device ID (RDI) instruction while an Erase, Program or
Write Status Register cycle is in progress, is not decoded, and has no effect on the cycle that is in
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