Datasheet

Table 31-6. Possible Pin Assignments for Alternate Functions (continued)
GPIO FunctionAlternate Function# of Possible Assignments
PA0 PD0 PL4 PR4T0CCP0
four
PA1 PD1 PL5 PR5T0CCP1
PA2 PD2 PL6 PR6T1CCP0
PA3 PD3 PL7 PR7T1CCP1
PA6 PD4 PM2 PS2T3CCP0
PA7 PD5 PM3 PS3T3CCP1
PB0 PD6 PM4 PS4T4CCP0
PB1 PD7 PM5 PS5T4CCP1
PB6 PP0 PQ0 PT0T6CCP0
PB7 PP1 PQ1 PT1T6CCP1
PB5 PE7 PG5 PH0U0RTS
PG2 PL1 PN5 PP5 PR2I2C2SCL
five
PG3 PL0 PN4 PP6 PR3I2C2SDA
PB4 PE6 PG4 PH1 PM4U0CTS
PE3 PG4 PG6 PG7 PP4 PP7OWIRE
six
31.6 Connections for Unused Signals
Table 31-7 on page 2099 show how to handle signals for functions that are not used in a particular
system implementation for devices that are in a 212-ball 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.
Table 31-7. Connections for Unused Signals (212-Ball BGA)
Preferred PracticeAcceptable PracticePin NumberSignal NameFunction
VDDAVDDAF4VREFA+
ADC
GNDGNDG5VREFA-
NCNCV13EN0RXIN
Ethernet
NCNCW13EN0RXIP
NCNCV14EN0TXON
NCNCV15EN0TXOP
NC
a
Connect to ground
through 4.87K resistor
W15RBIAS
GND
b
NCW3PA1(UART0TX)
GPIO GND
c
NCV4PA4 (SSI0XDAT0)
GNDNC-All unused GPIOs
2099December 13, 2013
Texas Instruments-Advance Information
Tiva
™
TM4C129XNCZAD Microcontroller