w25q80bv Winbond Electronics Corp America, w25q80bv Datasheet - Page 51

• Manufacturer Part Number: w25q80bv
• Description: 8m-bit Serial Flash Memory With Dual And Quad Spi
• Manufacturer: Winbond Electronics Corp America

10.2.32 Read Manufacturer / Device ID Dual I/O (92h)
The 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 for Winbond (EFh) 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 30. The Device ID values
for the W25Q80BV is listed in Manufacturer and Device Identification table. If the 24-bit address is initially
set to 000001h the Device ID will be read first and then followed by the Manufacturer ID. The
Manufacturer and Device IDs can be read continuously, alternating from one to the other. The instruction
is completed by driving /CS high.
Note:
The “Continuous Read Mode” bits M7-0 must be set to Fxh to be compatible with Fast Read Dual I/O instruction.
Figure 30. Read Manufacturer / Device ID Dual I/O Diagram
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Publication Release Date: March 26, 2009
Preliminary - Revision A
W25Q80BV