LM3S317 Datasheet, PDF (349/379 Pages) List of Unclassifed Manufacturers – Microcontroller

LM3S317 Data Sheet
17 Signal Tables
The following tables list the signals available for each pin. Functionality is enabled by software with
the GPIOAFSEL register (see page 131).
Important: All multiplexed pins are GPIOs by default, with the exception of the five JTAG pins
(PB7 and PC[3:0]) which default to the JTAG functionality.
shows the pin-to-signal-name mapping, including functional characteristics of the signals. lists the
signals in alphabetical order by signal name. groups the signals by functionality, except for
GPIOs. lists the GPIO pins and their alternate functionality.
Table 17-1. Signals by Pin Number (Sheet 1 of 3)
Pin
Number
Pin Name
1
ADC0
2
ADC1
3
ADC2
4
ADC3
5
RST
6
LDO
7
VDD
8
GND
9
OSC0
10
OSC1
11
PC7
CCP4
12
PC6
CCP3
13
PC5
CCP1
14
PC4
CCP5
15
VDD
16
GND
17
PA0
U0Rx
Pin Buffer
Type Type
Description
I
Analog Analog-to-digital converter input 0.
I
Analog Analog-to-digital converter input 1.
I
Analog Analog-to-digital converter input 2.
I
Analog Analog-to-digital converter input 3.
I
TTL System reset input.
-
Power The low drop-out regulator output voltage. This pin requires an
external capacitor between the pin and GND of 1 µF or greater.
-
Power Positive supply for logic and I/O pins.
-
Power Ground reference for logic and I/O pins.
I
Analog Oscillator crystal input or an external clock reference input.
O Analog Oscillator crystal output.
I/O
TTL GPIO port C bit 7.
I/O
TTL Timer 2 capture input, compare output, or PWM output channel 4.
I/O
TTL GPIO port C bit 6.
I/O
TTL Timer 1 capture input, compare output, or PWM output channel 3.
I/O
TTL GPIO port C bit 5.
I/O
TTL Timer 0 capture input, compare output, or PWM output channel 1.
I/O
TTL GPIO port C bit 4.
I/O
TTL Timer 2 capture input, compare output, or PWM output channel 5.
-
Power Positive supply for logic and I/O pins.
-
Power Ground reference for logic and I/O pins.
I/O
TTL GPIO port A bit 0.
I
TTL UART0 receive data input.
May 4, 2007
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Preliminary