MX25U4035
MX25U8035
ESRY
(enable SO
to output RY/ to output RY/
BY#)
70 (hex)
DSRY
(disable SO
RDSCUR
(read security (write security
WRSCUR
Command
(byte)
HDE (HOLD#
Enable)
register)
2B (hex)
register)
2F (hex)
BY#)
80 (hex)
1st byte
2nd byte
3rd byte
4th byte
AA (hex)
to read value to set the lock- to enable SO to disable SO
to enable
HOLD# pin
function
of security
register
down bit as
to output RY/ to output RY/
"1" (once lock- BY# during CP BY# during CP
down, cannot
be update)
mode
mode
Action
Note 1: The count base is 4-bit for ADD(2) and Dummy(2) because of 2 x I/O. And the MSB is on SI/SIO1 which is different from
1 x I/O condition.
Note 2: ADD=00H will output the manufacturer ID first and ADD=01H will output device ID first.
Note 3: It is not recommended to adopt any other code not in the command definition table, which will potentially enter the hid-
den mode.
P/N: PM1394
REV. 1.0, MAR. 09, 2009
16
Macronix [ MACRONIX INTERNATIONAL ]
