mx25l12855e Macronix International Co., mx25l12855e Datasheet - Page 31

• Manufacturer Part Number: mx25l12855e
• Description: Secured Serial Flash
• Manufacturer: Macronix International Co.

P/N: PM1466
the GPIO function is enabled, or the GPIORST instruction will not be executed.
The sequence of issuing GPIORST instruction is: CS# goes low -> GPIORST instruction code is sent -> CS# goes
high.
The CS# must go high exactly at the byte boundary; otherwise, the instruction will be rejected and not executed.
GPIO register definition is as follows:
Name D[6:0]
GPWD[6:0]
GPOM[6:0]
GPDC[6:0]
GPPU[6:0]
GPPD[6:0]
GPDS[6:0]
GPRD[6:0]
GPOS[6:0]
GPST[6:0]
GPOI[6:0]
Register
GPII[6:0]
Reg. Address
A[6:0]
0x0C
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
0x09
GPIO Pin Output Inversion
GPIO Pin Input Inversion
GPIO Pin Output Mode
GPIO one shot enable
GPIO Pin Write Data
GPIO Pin Read Data
GPIO Pin pull-down
GPIO Pin Direction
GPIO Pin pull-up
GPIO Pin Driving
GPIO Pin Smitt
resistor enable
resistor enable
Trigger enable
Configuration
Strength
31
Description
0:Configured as input pin
1: Configured as output pin
0: Open drain
1:Push-pull
Valid only when GPDC[n]=1
0: Data="0"
1: Data="1"
It's only valid for output pins.
0: Disable
1: Enable
0: Disable
1: ~50K Ω to VDD
0: Disable
1: ~50K Ω to GND
0: 2mA (weak)
1: 4mA (strong)
0: data="0"
1: data="1"
0: No inversion
1: Inversion enable
0: No inversion
1: Inversion enable
0 : Disable
1 : Enable
(When pin value is "1", keep "1"
until GPRD[n] is written "1")
MX25L12855E
REV. 0.05, MAR. 05, 2009
POR/GPIO reset
Reg. Value after
0000000
0000000
0000000
0000000
0000000
0000000
0000000
0000000
0000000
0000000
0000000