Nxp Semiconductors UM10237 用户手册

UM10237_2

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[1]

Reset value reflects the data stored in used bits only. It does not include reserved bits content.

IOPIN

GPIO Port Pin value register. The current state of the GPIO 
configured port pins can always be read from this register, 
regardless of pin direction. By writing to this register port’s pins will 
be set to the desired level instantaneously.

R/W

NA

IO0PIN - 0xE002 8000
IO1PIN - 0xE002 8010

IOSET

GPIO Port Output Set register. This register controls the state of 
output pins in conjunction with the IOCLR register. Writing ones 
produces highs at the corresponding port pins. Writing zeroes has 
no effect.

R/W

0x0

IO0SET - 0xE002 8004
IO1SET - 0xE002 8014

IODIR

GPIO Port Direction control register. This register individually 
controls the direction of each port pin.

R/W

0x0

IO0DIR - 0xE002 8008
IO1DIR - 0xE002 8018

IOCLR

GPIO Port Output Clear register. This register controls the state of 
output pins. Writing ones produces lows at the corresponding port 
pins and clears the corresponding bits in the IOSET register. 
Writing zeroes has no effect.

WO

0x0

IO0CLR - 0xE002 800C
IO1CLR - 0xE002 801C