T25S16AFEPR datasheet(62/74 Pages) HMSEMI

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Figure 7.39 Global Block Lock Instruction(SPI or QPI Mode)

7.5.13 Global Block/Sector Unlock (98h)

All Block/Sector Lock bits can be set to 0 by the Global Block/Sector Unlock instruction. The command

must be issued by driving CS# low, shifting the instruction code “98h” into the Data Input (DI) pin on the rising

edge of CLK, and then driving CS# high. A Write Enable instruction must be executed before the device will

accept the Global Block/Sector Unlock Instruction (Status Register bit WEL= 1).

Figure 7.40 Global Block Lock Instruction(SPI or QPI Mode)

7.5.14 Read Manufacturer / Device ID Dual I/O (92h)

The Read Manufacturer / Device ID Dual I/O instruction is an alternative to the Read Manufacturer /

Device ID instruction that provides both the JEDEC assigned manufacturer ID and the specific device ID at 2x

speed.

The Read Manufacturer / Device ID Dual I/O instruction is similar to the Fast Read Dual I/O instruction.

The instruction is initiated by driving the CS# pin low and shifting the instruction code “92h” followed by a

24-bit address (A23-A0) of 000000h, but with the capability to input the Address bits two bits per clock. After

which, the Manufacturer ID and the Device ID are shifted out 2 bits per clock on the falling edge of CLK with

most significant bits (MSB) first as shown in Figure 7.41. The Device ID values for the ZB25VQ128 are listed

in Manufacturer and Device Identification table. The Manufacturer and Device IDs can be read continuously,

alternating from one to the other. The instruction is completed by driving CS# high.

HM25Q128A

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