S25FL064K Meet Spansion Inc., S25FL064K Datasheet - Page 50

• Manufacturer Part Number: S25FL064K
• Description: 64-mbit Cmos 3.0 Volt Flash Memory With 80-mhz Spi Serial Peripheral Interface Multi I/o Bus
• Manufacturer: Meet Spansion Inc.

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Read Manufacturer / Device ID Quad I/O (94h)
The Read Manufacturer / Device ID Quad 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 4x speed.
The Read Manufacturer / Device ID Quad I/O instruction is similar to the Fast Read Quad I/O instruction. The
instruction is initiated by driving the CS# pin low and shifting the instruction code “94h” followed by a four
clock dummy cycles and then a 24-bit address (A23-A0) of 000000h, but with the capability to input the
Address bits four bits per clock. After which, the Manufacturer ID and the Device ID are shifted out four bits
per clock on the falling edge of CLK with most significant bit (MSB) first as shown in
ID values for the S25FL064K is listed in
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:
1. The “Continuous Read Mode” bits M(7-0) must be set to Fxh to be compatible with Fast Read Quad I/O instruction.
CLK
CLK
CS#
IO0
CS#
IO1
IO2
IO0
IO3
IO2
IO1
IO3
Figure 7.33 Read Manufacturer / Device ID Quad I/O Diagram
D a t a
S25FL064K
Table 7.2, Device Identification on page
S h e e t
( P r e l i m i n a r y )
S25FL064K_00_02 September 16, 2010
19. If the 24-bit address is
Figure
7.33. The Device