MRF24XA_15 Datasheet, PDF (30/258 Pages) Microchip Technology – Low-Power, 2.4 GHz ISM-Band IEEE 802.15.4™ RF

MRF24XA
REGISTER 2-13: STGPIO (SCHMITT TRIGGER GENERAL PURPOSE I/O REGISTER)
ADDRESS: 0x0E
R-0
R/W-0
R/W-0
R/W-0
R-0
R/W-0
R/W-0
R/W-0
r
GPIO2P
GPIO1P
GPIO0P
r
STENGPIO2 STENGPIO1 STENGPIO0
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
GPIO2P: GPIO 2 Polarity bit
This bit controls GPIO2IF polarity when configured into Input mode.
1 = Rising edge
0 = Falling edge
bit 5
GPIO1P: GPIO 1 Polarity bit
This bit controls GPIO1IF polarity when configured into Input mode.
1 = Rising edge
0 = Falling edge
bit 4
GPIO0P: GPIO 0 Polarity bit
This bit controls GPIO0IF polarity when configured into Input mode.
1 = Rising edge
0 = Falling edge
bit 3
Reserved: Maintain as ‘0’
bit 2
STENGPIO2: Schmitt Trigger Enable GPIO 2 bit
This bit enables Schmitt-trigger circuit on GPIO 2 pad and turns off by default.
1 = Schmitt trigger enabled
0 = Schmitt trigger disabled
bit 1
STENGPIO1: Schmitt Trigger Enable GPIO 1 bit
This bit enables Schmitt-trigger circuit on GPIO 1 pad and turns off by default.
1 = Schmitt trigger enabled
0 = Schmitt trigger disabled
bit 0
STENGPIO0: Schmitt Trigger Enable GPIO 0 bit
This bit enables Schmitt-trigger circuit on GPIO 0 pad and turns off by default.
1 = Schmitt trigger enabled
0 = Schmitt trigger disabled
DS70005023C-page 30
Preliminary
 2015 Microchip Technology Inc.