MAXQ2010-RFX+ datasheet(19/34 Pages) MAXIM

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16-Bit Mixed-Signal Microcontroller

with LCD Interface

______________________________________________________________________________________

Pin Description (continued)

NAME

FUNCTION

LCD Segment-Driver Output; LCD Common Drive Output. These pins function as LCD

segment or common drive outputs. Configuring a pin as a common drive output disables the

segment function for that pin.

SPECIAL/ALTERNATE FUNCTION

COM3

SEG40

COM2

SEG41

10, 9, 8

COM3, COM2,

COM1; SEG40,

SEG41, SEG42

COM1

SEG42

7COM0

LCD Common Drive 0, Output. This pin functions as a LCD common-drive output.

P5.0/INT8/

TB0B/RX0

Digital I/O, Type D Port 5.0; Timer B0 Pin B; Serial Port 0 Receive; External Edge-Selectable

Interrupt 8. This pin defaults to an input with a weak pullup after reset and functions as

general-purpose I/O. The port pad contains a Schmitt voltage input and can be configured as

an external interrupt. Enabling a special function disables the pin as digital I/O.

P5.1/INT9/

TB0A/TX0

Digital I/O, Type D Port 5.1; Timer B0 Pin A; Serial Port 0 Transmit; External Edge-

Selectable Interrupt 9. This pin defaults to an input with a weak pullup after reset and

functions as general-purpose I/O. The port pad contains a Schmitt voltage input and can be

configured as an external interrupt. Enabling a special function disables the pin as general-

purpose I/O.

P5.2/INT10/

SQW

Digital I/O, Type-D Port 5.2; External Edge-Selectable Interrupt 10; RTC Square-Wave Output.

This pin defaults to an input with a weak pullup after reset and functions as general-purpose

I/O. The port pad contains a Schmitt voltage input and can be configured as an external

interrupt. Enabling a special function disables the pin as general-purpose I/O.

P5.3/INT11/

SSEL

Digital I/O, Type D Port 5.3; External Edge-Selectable Interrupt 11; Active-Low SPI Slave-

Select Input. This pin defaults to an input with a weak pullup after reset and functions as

general-purpose I/O. The port pad contains a Schmitt voltage input and can be configured as

an external interrupt. Enabling a special function disables the pin as general-purpose I/O.

P5.4/INT12/

MOSI

Digital I/O, Type D Port 5.4; External Edge-Selectable Interrupt 12; SPI Master Out-Slave In.

This pin defaults to an input with a weak pullup after reset and functions as general-purpose

I/O. The port pad contains a Schmitt voltage input and can be configured as an external

interrupt. Enabling a special function disables the pin as general-purpose I/O.

P5.5/INT13/

SCLK

Digital I/O, Type D Port 5.5; External Edge-Selectable Interrupt 13; SPI Clock Output. This pin

defaults as an input with a weak pullup after a reset and functions as general-purpose I/O. The

port pad contains a Schmitt input circuitry and can be configured as an external interrupt.

Enabling a special function disables the pin as general-purpose I/O.

P5.6/INT14/

MISO

Digital I/O, Type D Port 5.6; External Edge-Selectable Interrupt 14; SPI Master In-Slave Out.

This pin defaults to an input with a weak pullup after reset and functions as general-purpose

I/O. The port pad contains a Schmitt voltage input and can be configured as an external

interrupt. Enabling a special function disables the pin as general-purpose I/O.

P6.0/INT15/

TCK

Digital I/O, Type D Port 6.0; External Edge-Selectable Interrupt 15; JTAG Test Clock Input.

This pin defaults to an input with a weak pullup after reset and functions as general-purpose

I/O. The port pad contains a Schmitt voltage input and can be configured as an external

interrupt. Enabling a special function disables the pin as general-purpose I/O.

P6.1/INT16/

TDI

Digital I/O, Type D Port 6.1; External Edge-Selectable Interrupt 16; JTAG Test Data Input.

This pin defaults to an input with a weak pullup after reset and functions as general-purpose

I/O. The port pad contains a Schmitt voltage input and can be configured as an external

interrupt. Enabling a special function disables the pin as general-purpose I/O.

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