Pin description (continued) – Rainbow Electronics MAXQ2010 User Manual
Page 20
MAXQ2010
16-Bit Mixed-Signal Microcontroller with LCD
20
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Pin Description (continued)
PIN
NAME
FUNCTION
30
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.
29
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.
28
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.
25
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.
24
P6.6/INT21/
TB2B/SCL
Digital I/O, Type D Port 6.6; External Edge-Selectable Interrupt 21; Timer B2 Pin B; I
2
C 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.
23
P6.7/INT22/
TB2A/SDA
Digital I/O, Type D Port 6.7; External Edge-Selectable Interrupt 22; Timer B2 Pin A; I
2
C 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.