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Field
Function
2
IO2
Same as IO4.
1-0
-
Reserved.
4.54 GPIO Direction (GPIO_DIR)
Address
Register
Offset
GPIO_DIR
084h
Function
GPIO_DIR is the direction control registers of the 8-bit GPIO port.
If a GPIO_DIR register bit is 0, the corresponding GPIO port pin is in input mode, and can be accessed through the same
GPIO1_IOn pin.
If a GPIO_DIR register bit is 1, the corresponding GPIO port pin is in output mode, and GPIO1 port pins are set to the
corresponding value in GPIO_IOn.
Diagram
Bits
7
6
5
4
3
2
1
0
R
IO4
DIR3
DIR3
W
CRST
000
0
0
0
00
Fields
Field
Function
7-5
-
Reserved.
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GPIO Direction (GPIO_DIR)
QorIQ LS1028A Reference Design Board Reference Manual, Rev. b, 11/2018
NXP Semiconductors
COMPANY CONFIDENTIAL
103
Содержание QorIQ LS1028A
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