MAXQ305 Datasheet, PDF (8/29 Pages) Maxim Integrated Products – Low-Voltage Microcontroller with Infrared Module

MAXQ305
Low-Voltage Microcontroller with Infrared Module
Pin Description (continued)
PIN
BARE
DIE
TQFN
NAME
FUNCTION
GENERAL-PURPOSE I/O AND SPECIAL FUNCTION PINS
Port 0 General-Purpose Digital I/O Pins. These port pins function as general-purpose
I/O pins with their input and output states controlled by the PD0, PO0, and PI0 registers.
All port pins default to high-impedance mode after a reset. Software must configure
these pins after release from reset to remove the high-impedance condition. All special
functions must be enabled from software before they can be used.
39 33
P0.0/INT0/IRTXM
38 32
P0.1/INT1/RX0
37 31
P0.2/INT2/TX0
35 30
P0.3/INT3/RX1
33 29
P0.4/INT4/TX1
32 28 P0.5/INT5/TBA0/TBA1
30 27
P0.6/INT6/TBB0
29 26
P0.7/INT7/TBB1
GPIO PORT PIN
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
SPECIAL FUNCTIONS
INT0/IR Modulator Output
INT1/USART 0 Receive
INT2/USART 0 Transmit
INT3/USART 1 Receive
INT4/USART 1 Transmit
INT5/Type B Timer 0 Pin A or Type B Timer 1 Pin A
INT6/Type B Timer 0 Pin B
INT7/Type B Timer 1 Pin B
Port 1 General-Purpose Digital I/O Pins. These port pins function as general-purpose
I/O pins with their input and output states controlled by the PD1, PO1, and PI1 registers.
All port pins default to high-impedance mode after a reset. Software must configure
these pins after release from reset to remove the high-impedance condition. All special
functions must be enabled from software before they can be used (Note that P1.6 and
P1.7 do not support the weak pullup mode).
1
44
2
1
3
2
4
3
46 40
47 41
48 42
49 43
P1.3/INT11
P1.2/INT10
P1.1/INT9
P1.0/INT8
P1.7/INT15/LED1
P1.6/INT14/LED0
P1.5/INT13
P1.4 / INT12
GPIO PORT PIN
P1.3
P1.2
P1.1
P1.0
P1.7 (No weak pullup mode)
P1.6 (No weak pullup mode)
P1.5
P1.4
SPECIAL FUNCTIONS
INT11
INT10
INT9
INT8
INT15/LED1 Output
INT14/LED0 Output
INT13
INT12
Maxim Integrated
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