MCP23S18T-E/MJ Microchip Technology, MCP23S18T-E/MJ Datasheet - Page 20

• Manufacturer Part Number: MCP23S18T-E/MJ
• Description: 16-bit Input/Output Expander, I2C Interface, Pb-free 24 QFN 4x4mm T/R
• Manufacturer: Microchip Technology

Specifications of MCP23S18T-E/MJ

• Interface: SPI
• Number Of I /o: 16
• Interrupt Output: Yes
• Frequency - Clock: 10MHz
• Voltage - Supply: 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 24-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

MCP23018/MCP23S18
1.6.3
The GPINTEN register controls the interrupt-on-
change feature for each pin.
If a bit is set, the corresponding pin is enabled for
interrupt-on-change. The DEFVAL and INTCON
registers must also be configured if any pins are
enabled for interrupt-on-change.
REGISTER 1-5:
DS22103A-page 20
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-0
GPINT7
R/W-0
INTERRUPT-ON-CHANGE
CONTROL REGISTER
GPINT7:GPINT0: General purpose I/O interrupt-on-change pins <7:0>
1 = Enable GPIO input pin for interrupt-on-change event
0 = Disable GPIO input pin for interrupt-on-change event.
GPINT6
R/W-0
GPINTEN – INTERRUPT-ON-CHANGE PINS
W = Writable bit
‘1’ = Bit is set
GPINT5
R/W-0
GPINT4
R/W-0
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
GPINT3
R/W-0
GPINT2
R/W-0
© 2008 Microchip Technology Inc.
x = Bit is unknown
GPINT1
R/W-0
GPINT0
R/W-0
bit 0