GD25S512MDFJS datasheet(50/87 Pages) GIGADEVICE

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3.3V Uniform Sector

Dual and Quad Serial Flash

GD25S512MD

7.27.

Clear SR Flags (30H)

The Clear Status Register Flags command resets bit S18 (Program Error bit) and S19 (Erase Error bit) from status

command will not be accepted when the device remains busy with WIP set to 1. The WEL bit will be unchanged after this

command is executed.

Figure 53 Clear Status Register Flags Sequence Diagram

7.28.

Release from Deep Power-Down and Read Device ID (RDI) (ABH)

The Release from Power-Down and Read Device ID command is a multi-purpose command. It can be used to release

the device from the Power-Down state or obtain the devices electronic identification (ID) number.

To release the device from the Power-Down state, the command is issued by driving the CS# pin low, shifting the

instruction code

“ABH” and driving CS# high as shown below. Release from Power-Down will take the time duration of

tRES1 (See AC Characteristics) before the device will resume normal operation and other c omma nd are 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 command is initiated by driving the

CS# pin low and shifting the instruction code

“ABH” followed by 3-dummy Byte. The Device ID bits are then shifted out on

the falling edge of SCLK with most significant bit (MSB) first as shown below. The Device ID value is listed in Manufacturer

and Device Identification table. The Device ID can be read continuously. The command is completed by driving CS# high.

When used to release the device from the Power-Down state and obtain the Device ID, the command is the same

as previously described, except that after CS# is driven high it must remain high for a time duration of tRES2 (See AC

Characteristics). After this time duration the device will resume normal operation and other command will be accepted. If

the Release from Power-Down / Device ID command is issued while an Erase, Program or Write cycle is in process (when

WIP equal 1) the command is ignored and will not have any effects on the current cycle.

Figure 54 Release Power-Down Sequence Diagram

Command

30H

CS#

SCLK

High-Z

Command

ABH

CS#

SCLK

RES1

Stand-by mode

Deep Power-down mode

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