Datasheet

© 2007 Microchip Technology Inc. DS21664D-page 33
MCP2502X/5X
REGISTER 5-4: IOINTPO REGISTER
REGISTER 5-5: IOINTFL REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
GP7POL GP6POL GP5POL GP4POL GP3POL GP2POL GP1POL GP0POL
bit 7 bit 0
bit 7-0 GP7POL:GP0POL: Transmit-on-change Polarity bits
1 = Digital Inputs: Low-to-High Transition On Corresponding GPIO Input Pin Generates a
transmit message
Analog Inputs: A/D result above compare value generates a transmit message
0 = Digital Inputs: High-to-Low Transition On Corresponding GPIO Input Generates transmit
message
Analog Inputs: A/D result below compare value generates a transmit message
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
- n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
GP7TXF GP6TXF GP5TXF GP4TXF GP3TXF GP2TXF GP1TXF GP0TXF
bit 7 bit 0
bit 7-0 GP7TXF:GP0TXF: Transmit-on-change Polarity bits
1 = Digital Inputs: A valid edge has occurred on the digital input
Analog Inputs: A/D result does exceed the compare threshold
0 = Digital Inputs: A valid edge has not occurred on the digital input
Analog Inputs: A/D result does not exceed the compare threshold
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
- n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown