IS25LD256C
DEVICE OPERATION (CONTINUED)
RDMDID COMMAND (READ DEVICE MANUFACTURER AND DEVICE ID)
OPERATION
The RDMDID instruction allows the user to read the the Device ID (2Fh), and is shifted out on SO with the
manufacturer and product ID of devices. Refer to Table MSB first, each bit shifted out during the falling edge of
11 Product Identification for pFlash Manufacturer ID SCK. If CE# stays low after the last bit of the Device ID
and Device ID. The RDMDID command is input,
is shifted out, the Manufacturer ID and Device ID will
followed by a 24-bit address pointing to an ID table. loop until CE# is pulled high.
The table contains the first Manufacturer ID (9Dh) and
Figure 5. Read Product Identification by RDMDID READ Sequence
Integrated Silicon Solution, Inc.- www.issi.com
13
Rev. A
09/11/2012