LM3S1512_16 Datasheet, PDF (599/660 Pages) Texas Instruments – Stellaris LM3S1512 Microcontroller

Stellaris^® LM3S1512 Microcontroller
Table 18-6. Signals by Signal Name (continued)
Pin Name
Pin Number Pin Type Buffer Type^a Description
TDI
B8
I
TTL
JTAG TDI.
TDO
A10
O
TTL
JTAG TDO and SWO.
TMS
B9
I/O
TTL
JTAG TMS and SWDIO.
TRST
A8
I
TTL
JTAG TRST.
U0Rx
L3
I
TTL
UART module 0 receive. When in IrDA mode, this signal has
IrDA modulation.
U0Tx
M3
O
TTL
UART module 0 transmit. When in IrDA mode, this signal has
IrDA modulation.
U1Rx
H2
I
TTL
UART module 1 receive. When in IrDA mode, this signal has
IrDA modulation.
U1Tx
H1
O
TTL
UART module 1 transmit. When in IrDA mode, this signal has
IrDA modulation.
U2Rx
K1
I
TTL
UART module 2 receive. When in IrDA mode, this signal has
IrDA modulation.
U2Tx
K2
O
TTL
UART module 2 transmit. When in IrDA mode, this signal has
IrDA modulation.
VBAT
L12
-
Power Power source for the Hibernation module. It is normally
connected to the positive terminal of a battery and serves as
the battery backup/Hibernation module power-source supply.
VDD25
C3
-
Power Positive supply for most of the logic function, including the
D3
processor core and most peripherals.
F3
G3
VDD33
E10
-
Power Positive supply for I/O and some logic.
G10
G11
G12
H10
K7
K8
K9
VDDA
C6
-
Power The positive supply for the analog circuits (ADC, Analog
C7
Comparators, etc.). These are separated from VDD to
minimize the electrical noise contained on VDD from affecting
the analog functions. VDDA pins must be supplied with a
voltage that meets the specification in “Recommended DC
Operating Conditions” on page 607, regardless of system
implementation.
WAKE
M10
I
TTL
An external input that brings the processor out of Hibernate
mode when asserted.
XOSC0
K11
I
Analog Hibernation module oscillator crystal input or an external clock
reference input. Note that this is either a crystal or a
32.768-kHz oscillator for the Hibernation module RTC.
XOSC1
K12
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.
July 15, 2014
599
Texas Instruments-Production Data