LM3S5G51 Datasheet, PDF (1134/1266 Pages) Texas Instruments – Stellaris® LM3S5G51 Microcontroller

Signal Tables
Table 23-3. Signals by Signal Name (continued)
Pin Name
Pin Number Pin Mux / Pin Pin Type Buffer Type^a Description
Assignment
VREFA
90
PB6
I
Analog This input provides a reference voltage used to
specify the input voltage at which the ADC converts
to a maximum value. In other words, the voltage
that is applied to VREFA is the voltage with which
an AINn signal is converted to 4095. The VREFA
input is limited to the range specified in Table
25-23 on page 1198 .
WAKE
50
fixed
I
TTL
An external input that brings the processor out of
Hibernate mode when asserted.
XOSC0
52
fixed
I
Analog Hibernation module oscillator crystal input or an
external clock reference input. Note that this is
either a 4.194304-MHz crystal or a 32.768-kHz
oscillator for the Hibernation module RTC. See the
CLKSEL bit in the HIBCTL register.
XOSC1
53
fixed
O
Analog Hibernation module oscillator crystal output. Leave
unconnected when using a single-ended clock
source.
a. The TTL designation indicates the pin has TTL-compatible voltage levels.
Table 23-4. Signals by Function, Except for GPIO
Function
ADC
Pin Name
AIN0
AIN1
AIN2
AIN3
AIN4
AIN5
AIN6
AIN7
AIN8
AIN9
AIN10
AIN11
AIN12
AIN13
AIN14
AIN15
VREFA
Pin Number
1
2
5
6
100
99
98
97
96
95
92
91
13
12
11
10
90
Pin Type
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
Buffer Type^a
Description
Analog Analog-to-digital converter input 0.
Analog Analog-to-digital converter input 1.
Analog Analog-to-digital converter input 2.
Analog Analog-to-digital converter input 3.
Analog Analog-to-digital converter input 4.
Analog Analog-to-digital converter input 5.
Analog Analog-to-digital converter input 6.
Analog Analog-to-digital converter input 7.
Analog Analog-to-digital converter input 8.
Analog Analog-to-digital converter input 9.
Analog Analog-to-digital converter input 10.
Analog Analog-to-digital converter input 11.
Analog Analog-to-digital converter input 12.
Analog Analog-to-digital converter input 13.
Analog Analog-to-digital converter input 14.
Analog Analog-to-digital converter input 15.
Analog
This input provides a reference voltage used to
specify the input voltage at which the ADC converts
to a maximum value. In other words, the voltage
that is applied to VREFA is the voltage with which
an AINn signal is converted to 4095. The VREFA
input is limited to the range specified in Table
25-23 on page 1198 .
1134
Texas Instruments-Production Data
January 23, 2012