LM3S2276 Datasheet, PDF (714/785 Pages) Texas Instruments – Stellaris® LM3S2276 Microcontroller

Signal Tables
Table 19-2. Signals by Signal Name (continued)
Pin Name
Pin Number Pin Type Buffer Type^a Description
PWM4
25
O
TTL
PWM 4. This signal is controlled by PWM Generator 2.
PWM5
26
O
TTL
PWM 5. This signal is controlled by PWM Generator 2.
PWM6
11
O
TTL
PWM 6. This signal is controlled by PWM Generator 3.
PWM7
15
O
TTL
PWM 7. This signal is controlled by PWM Generator 3.
RST
40
I
TTL
System reset input.
SSI0Clk
19
I/O
TTL
SSI module 0 clock.
SSI0Fss
20
I/O
TTL
SSI module 0 frame.
SSI0Rx
21
I
TTL
SSI module 0 receive.
SSI0Tx
22
O
TTL
SSI module 0 transmit.
SWCLK
52
I
TTL
JTAG/SWD CLK.
SWDIO
51
I/O
TTL
JTAG TMS and SWDIO.
SWO
49
O
TTL
JTAG TDO and SWO.
TCK
52
I
TTL
JTAG/SWD CLK.
TDI
50
I
TTL
JTAG TDI.
TDO
49
O
TTL
JTAG TDO and SWO.
TMS
51
I/O
TTL
JTAG TMS and SWDIO.
U0Rx
17
I
TTL
UART module 0 receive. When in IrDA mode, this signal has
IrDA modulation.
U0Tx
18
O
TTL
UART module 0 transmit. When in IrDA mode, this signal has
IrDA modulation.
VBAT
37
-
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.
VDD
12
-
Power Positive supply for I/O and some logic.
28
43
59
VDD25
9
-
Power Positive supply for most of the logic function, including the
23
processor core and most peripherals.
38
54
VDDA
3
-
Power The positive supply (3.3 V) for the analog circuits (ADC,
Analog Comparators, etc.). These are separated from VDD
to minimize the electrical noise contained on VDD from
affecting the analog functions. VDDA pins must be connected
to 3.3 V, regardless of system implementation.
WAKE
32
I
TTL
An external input that brings the processor out of Hibernate
mode when asserted.
XOSC0
34
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
35
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.
714
November 17, 2011
Texas Instruments-Production Data