LM3S1512_16 Datasheet, PDF (604/660 Pages) Texas Instruments – Stellaris LM3S1512 Microcontroller

Signal Tables
Table 18-8. GPIO Pins and Alternate Functions (continued)
IO
Pin Number
Multiplexed Function
PG2
J1
PG3
J2
PG4
K3
PG5
M7
PG6
L7
PG7
C10
PH0
C9
CCP6
PH1
C8
CCP7
PH2
D11
PH3
D10
Multiplexed Function
18.3
Connections for Unused Signals
Table 18-9 on page 604 show how to handle signals for functions that are not used in a particular
system implementation for devices that are in a 100-pin LQFP package. Two options are shown in
the table: an acceptable practice and a preferred practice for reduced power consumption and
improved EMC characteristics. If a module is not used in a system, and its inputs are grounded, it
is important that the clock to the module is never enabled by setting the corresponding bit in the
RCGCx register.
Table 18-9. Connections for Unused Signals (100-pin LQFP)
Function
ADC
GPIO
Hibernate
No Connects
System Control
Signal Name
ADC0
ADC1
All unused GPIOs
HIB
VBAT
WAKE
XOSC0
XOSC1
NC
OSC0
OSC1
RST
Pin Number
1
2
-
51
55
50
52
53
-
48
49
64
Acceptable Practice
NC
Preferred Practice
GNDA
NC
GND
NC
NC
NC
GND
NC
GND
NC
GND
NC
NC
NC
NC
NC
GND
NC
NC
Pull up as shown in Figure Connect through a capacitor to
5-1 on page 168
GND as close to pin as possible
Table 18-10 on page 605 show how to handle signals for functions that are not used in a particular
system implementation for devices that are in a 108-pin BGA package. Two options are shown in
the table: an acceptable practice and a preferred practice for reduced power consumption and
improved EMC characteristics. If a module is not used in a system, and its inputs are grounded, it
is important that the clock to the module is never enabled by setting the corresponding bit in the
RCGCx register.
604
July 15, 2014
Texas Instruments-Production Data