MX25L8005
(14) Read Electronic Manufacturer ID & Device ID (REMS)
TheREMSinstructionisanalternativetotheReleasefromPower-down/DeviceIDinstructionthatprovidesboththeJEDEC
assigned manufacturer ID and the specific device ID.
The REMS instruction is very similar to the Release from Power-down/Device ID instruction. The instruction is initiated
bydrivingtheCS#pinlowandshifttheinstructioncode"90h"followedbytwodummybytesandonebytesaddress(A7~A0).
After which, the Manufacturer ID for MXIC (C2h) and the Device ID are shifted out on the falling edge of SCLK with most
significant bit (MSB) first as shown in figure 25. The Device ID values are listed in Table of ID Definitions on page 16. If
the one-byte address is initially set to 01h, then the device ID will be read first and then followed by the Manufacturer ID.
TheManufacturerandDeviceIDscanbereadcontinuously,alternatingfromonetotheother.Theinstructioniscompleted
by driving CS# high.
Table of ID Definitions:
RDID Command
RES Command
REMS Command
manufacturer ID
C2
memory type
20
memory density
14
electronic ID
13
manufacturer ID
C2
device ID
13
P/N:PM1237
REV. 2.2, OCT. 23, 2008
16
Macronix [ MACRONIX INTERNATIONAL ]
