MAXQ2010-RFX+ datasheet(20/34 Pages) MAXIM

20 / 34 page

16-Bit Mixed-Signal Microcontroller

with LCD Interface

______________________________________________________________________________________

Pin Description (continued)

NAME

FUNCTION

P6.2/INT17/

TMS

Digital I/O, Type D Port 6.2; External Edge-Selectable Interrupt 17; JTAG Test Mode 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.

P6.3/INT18/

TDO

Digital I/O, Type-D Port 6.3; External Edge-Selectable Interrupt 18; JTAG Test Data 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.

P6.4/INT19/

TB1B/RX1

Digital I/O, Type D Port 6.4; External Edge-Selectable Interrupt 19; Timer B1 Pin B; Serial

Port 1 Receive. 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.

P6.5/INT20/

TB1A/TX1

Digital I/O, Type D Port 6.5; External Edge-Selectable Interrupt 20; Timer B1 Pin A; Serial

Port 1 Transmit. 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.

P6.6/INT21/

TB2B/SCL

Digital I/O, Type D Port 6.6; External Edge-Selectable Interrupt 21; Timer B2 Pin B; I2C Clock

I/O. 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.

P6.7/INT22/

TB2A/SDA

Digital I/O, Type D Port 6.7; External Edge-Selectable Interrupt 22; Timer B2 Pin A; I2C Data

I/O. 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.

NO CONNECTION PINS

26, 27, 37, 38,

39, 49, 50, 51,

62, 69, 83, 97,

100

N.C.

No Connection. Reserved for future use. Leave these pins unconnected.

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