maxq2010-rfx Maxim Integrated Products, Inc., maxq2010-rfx Datasheet - Page 17

• Manufacturer Part Number: maxq2010-rfx
• Description: 16-bit Mixed-signal Microcontroller With Lcd
• Manufacturer: Maxim Integrated Products, Inc.

6–1, 94, 93
91–84
PIN
43
42
16-Bit Mixed-Signal Microcontroller with LCD
SEG8–SEG15
SEG0–SEG7;
P0.0–P0.7;
INT0–INT7
P1.0–P1.7;
______________________________________________________________________________________
NAME
V
V
LCD2
ADJ
GENERAL-PURPOSE I/O, SPECIAL FUNCTION, AND LCD INTERFACE PINS
LCD Bias, Voltage 2. LCD drive voltage used with 1/3 LCD bias. An internal resistor-divider
sets the voltage. External resistors and capacitors can be used to change LCD voltage or
drive capability at this pin.
LCD Adjustment Voltage. Connect to an external resistor to provide external control of the LCD
contrast. Leave disconnected for internal contrast adjustment.
Digital I/O, Type D Port 0; LCD Segment-Driver Output; External Edge-Selectable Interrupt.
This port functions as either bidirectional I/O or alternate LCD segment-drive outputs. The reset
condition of the port is with all bits at logic 1. In this state, a weak pullup holds the port high.
This condition serves as an input mode. Each port pin can individually be configured to act as
an external interrupt. Setting the PCF0 bit switches all pins on this port to LCD segment-drive
outputs.
It is possible to mix the LCD and interrupt functions on the same port. To do this, the interrupt
enable must be established prior to setting the PCF0 bit. Care must be taken not to enable the
external interrupt while the LCD is in normal operational mode, as this could result in
potentially harmful contention between the LCD controller output and the external source
connected to the interrupt input.
Digital I/O, Type C Port 1; LCD Segment-Driver Output. This port functions as either
bidirectional I/O or alternate LCD segment-drive outputs. The reset condition of the port is with
all bits at logic 1. In this state, a weak pullup holds the port high. This condition serves as an
input mode. The port pins also contain a Schmitt voltage input. Setting the PCF1 bit switches
all pins on this port to LCD segment-drive outputs.
PIN
PIN
94
93
91
90
89
88
87
86
85
84
6
5
4
3
2
1
PORT
PORT
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
FUNCTION
Pin Description (continued)
SPECIAL/ALTERNATE FUNCTION
SPECIAL/ALTERNATE FUNCTION
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG8
SEG9
INT0
INT1
INT2
INT3
INT4
INT5
INT6
INT7
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