ESMT
F25L32PA
Read-ID (RDID)
The Read-ID instruction (RDID) identifies the devices as
F25L32PA and manufacturer as ESMT. This command is
backward compatible to all ESMT SPI devices and should be
used as default device identification when multiple versions of
ESMT SPI devices are used in one design. The device
information can be read from executing an 8-bit command, 90H,
followed by address bits [A23 -A0]. Following the Read-ID
instruction, the manufacturer’s ID is located in address 00000H
and the device ID is located in address 00001H.
Once the device is in Read-ID mode, the manufacturer’s and
device ID output data toggles between address 00000H and
00001H until terminated by a low to high transition on CE .
CE
15 16
31 32
0
1
2
3
4
5
6
7
8
23 24
MSB
39 40
47 48
55 56
63
MODE3
SCK MODE0
SI
90
00
00
ADD1
MSB
HIGH
IMPENANCE
HIGH IMPENANCE
SO
8C
15
8C
15
MSB
Note: The Manufacture’s and Device ID output stream is continuous until terminated by a low to high transition on CE.
1. 00H will output the Manufacture’s ID first and 01H will output Device ID first before toggling between the two. .
Figure 29: Read ID Sequence
Table 8: Product ID Data
Address
Byte1
Byte2
8CH
15H
00000H
Device ID
Manufacturer’s ID
ESMT F25L32PA
15H
8CH
00001H
Device ID
Manufacturer’s ID
ESMT F25L32PA
Elite Semiconductor Memory Technology Inc.
Publication Date: Mar. 2009
Revision: 1.0 26/36
ESMT [ ELITE SEMICONDUCTOR MEMORY TECHNOLOGY INC. ]
