S25FL128K Meet Spansion Inc., S25FL128K Datasheet - Page 42

• Manufacturer Part Number: S25FL128K
• Description: 128-mbit Cmos 3.0 Volt Flash Memory With 104-mhz Spi Serial Peripheral Interface Multi I/o Bus
• Manufacturer: Meet Spansion Inc.

42
6.2.27
Read Manufacturer / Device ID (90h)
The Read Manufacturer/Device ID instruction is an alternative to the Release from Deep Power-down /
Device ID instruction that provides both the JEDEC assigned manufacturer ID and the specific device ID.
The Read Manufacturer/Device ID instruction is very similar to the Release from Deep Power-down / Device
ID instruction. The instruction is initiated by driving the CS# pin low and shifting the instruction code “90h”
followed by a 24-bit address (A23-A0) of 000000h. After which, the Manufacturer ID and the Device ID are
shifted out on the falling edge of CLK with most significant bit (MSB) first as shown in
ID values for the S25FL128K 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.
CLK
CLK
CS#
CS#
SO
SO
SI
SI
Mode 3
Mode 0
= MSB
31
32 33 34 35 36
0
1
Figure 6.33 Read Manufacturer / Device ID Diagram
Instruction (90h)
Manufacturer ID
2
D a t a
3
High Impedance
4
37 38 39 40 41 42
5
S25FL128K
Table 6.5, Device Identification on page
S h e e t
6
7
23
7
8
6
22 21
( P r e l i m i n a r y )
9
Device ID (
Address (000000h)
5
10
4
43 44 45 46
3
3
28 29 30
)
2
2
1
1
0
31
0
Mode 3
Mode 0
S25FL128K_00_02 April 1, 2011
17. If the 24-bit address is
Figure
6.33. The Device