MRF24XA_15 Datasheet, PDF (31/258 Pages) Microchip Technology – Low-Power, 2.4 GHz ISM-Band IEEE 802.15.4™ RF

MRF24XA
REGISTER 2-14: PULLGPIO (PULL CONTROL GENERAL PURPOSE I/O REGISTER)
ADDRESS: 0x0F
R-0
R/W-0
R/W-0
R/W-0
R-0
R/W-1
R/W-1
R/W-1
r
PULLDIR PULLDIR PULLDIR
r
GPIO2
GPIO1
GPIO0
PULLEN
GPIO2
PULLEN
GPIO1
PULLEN
GPIO0
bit 7
bit 0
Legend: R = Readable bit W = Writable bit
-n = Value at POR
‘1’ = Bit is set
r = Reserved
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 7
Reserved: Maintain as ‘0’
bit 6
PULLDIRGPIO2: Pull Direction on GPIO 2 bit
These bits control the 75 kOhm weak-pull circuit direction on GPIO 2 pin.
1 = Pull-up
0 = Pull-down
bit 5
PULLDIRGPIO1: Pull Direction on GPIO 1 bit
These bits control the 75 kOhm weak-pull circuit direction on GPIO 1 pin.
1 = Pull-up
0 = Pull-down
bit 4
PULLDIRGPIO0: Pull Direction on GPIO 0 bit
These bits control the 75 kOhm weak-pull circuit direction on GPIO 0 pin.
1 = Pull-up
0 = Pull-down
bit 3
Reserved: Maintain as ‘0’
bit 2
PULLENGPIO2: Pull enable on GPIO 2 bit
This bit enables the weak-pull circuit in GPIO 2 pin. Note that when pin is configured to output,
weak-pull circuit is automatically disabled.
1 = Pull enabled
0 = Pull disabled
bit 1
PULLENGPIO1: Pull enable on GPIO 1 bit
This bit enables the weak-pull circuit in GPIO 1 pin. Note that when pin is configured to output,
weak-pull circuit is automatically disabled.
1 = Pull enabled
0 = Pull disabled
bit 0
PULLENGPIO0: Pull enable on GPIO 0 bit
This bit enables the weak-pull circuit in GPIO 0 pin. Note that when pin is configured to output,
weak-pull circuit is automatically disabled.
1 = Pull enabled
0 = Pull disabled
 2015 Microchip Technology Inc.
Preliminary
DS70005023C-page 31