Rainbow Electronics MAXQ3120 - Manual (Page 8)

MAXQ3120
High-Precision ADC
Mixed-Signal Microcontroller
8 _____________________________________________________________________
Pin Description (continued)
PIN NAME FUNCTION
General-Purpose, 8-Bit, Digital, I/O, Type-C Port. These port pins function as bidirectional I/O pins
only. All port pins default to input mode with weak pullups enabled after a reset. JTAG functions are
enabled by default following reset; all other alternate functions must be enabled from software.
PIN PORT ALTERNATE FUNCTION
40 P3.0 TDO–JTAG Data Out
41 P3.1 TDI–JTAG Data In
42 P3.2 TMS–JTAG Mode Select
54 P3.3 TCK–JTAG Clock
55 P3.4 —
56 P3.5 —
57 P3.6 Serial Port 1 Transmit
40, 41, 42,
54–58
P3.0–P3.7/
TDO, TDI,
TMS, TCK,
TXDI, RXDI
58 P3.7 Serial Port 1 Receive
23 SEG0 LCD Segment 0 Driver. Dedicated LCD drive output.
18 SEG1 LCD Segment 1 Driver. Dedicated LCD drive output.
17 SEG2 LCD Segment 2 Driver. Dedicated LCD drive output.
16 SEG3 LCD Segment 3 Driver. Dedicated LCD drive output.
11 SEG4 LCD Segment 4 Driver. Dedicated LCD drive output.
10 SEG5 LCD Segment 5 Driver. Dedicated LCD drive output.
9 SEG6 LCD Segment 6 Driver. Dedicated LCD drive output.
8 SEG7 LCD Segment 7 Driver. Dedicated LCD drive output.
7 SEG8 LCD Segment 8 Driver. Dedicated LCD drive output.
6 SEG9 LCD Segment 9 Driver. Dedicated LCD drive output.
5 SEG10 LCD Segment 10 Driver. Dedicated LCD drive output.
4 SEG11 LCD Segment 11 Driver. Dedicated LCD drive output.
27 COM0 LCD Common 0 Driver. Dedicated LCD common-voltage output.
26 COM1 LCD Common 1 Driver. Dedicated LCD common-voltage output.
25 COM2 LCD Common 2 Driver. Dedicated LCD common-voltage output.
24 COM3 LCD Common 3 Driver. Dedicated LCD common-voltage output.
35, 36, 49,
50, 72, 73
N.C. No Connection