CXD5602 User Manual
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GPIO Output Control
0/1 can be output to an I/O pin according to the control register setting. The status that a control register value is
directly output to an I/O pin is called GPIO Output Control.
Settings in GPIO Output Control are described below.
GP_*.DIR
= 0 (OutputEnable)
{IOCSYS/IOCAPP}_IOMD{0/1}.*
= 0
GP_*.OUT
= any value
Figure General Purpose Input/Output (GPIO)-17 shows a visualized function controlled by GPIO parameter that is
set by GPIO output control register.
I/O Function
Pull up/down, LOWEMI
Pull up
State
Pull Dn
State
GPIO Control
I/O Configuration
2
IO Pin
Pin Output Enable
Pin Output
Pull-up/Pull-down
Event
Detect
Wakeup factor
(to PMU)
Interrupt
(to CPU/DSP)
Output(Mode1)
Alternate Function Output
Alternate Function Input
GPIO Status
Pin Input
Output(Mode2)
Output(Mode3)
Input(Mode1)
Input(Mode2)
Input(Mode3)
Pin Input Enable
Input Enable
GP_*.DIR=0
GP_*.OUT
Figure General Purpose Input/Output (GPIO)-17 Output
Signal Route in the I/O Function Controlled by GPIO
Parameter
For example, the settings that pin P10_00 is assigned GPIO output control function are described below.
GP_I2C4_BCK.DIR
= 0 (OutputDisable)
IOCSYS_IOMD0.I2C4
= 0
GP_I2C4_BCK.OUT
= (1/0)
Summary of Contents for CXD5602
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