LM3S1N16 Datasheet, PDF (739/794 Pages) Texas Instruments – Stellaris® LM3S1N16 Microcontroller

Stellaris^® LM3S1N16 Microcontroller
Table 18-4. Signals by Function, Except for GPIO (continued)
Function
I2C
Pin Name
I2C0SCL
I2C0SDA
I2C1SCL
I2C1SDA
Pin Number
47
27
17
25
18
26
Pin Type
I/O
I/O
I/O
I/O
Buffer Type^a
Description
OD
I²C module 0 clock.
OD
I²C module 0 data.
OD
I²C module 1 clock.
OD
I²C module 1 data.
SWCLK
52
I
TTL
JTAG/SWD CLK.
SWDIO
51
I/O
TTL
JTAG TMS and SWDIO.
SWO
49
O
TTL
JTAG TDO and SWO.
JTAG/SWD/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
TTL
JTAG TMS and SWDIO.
GND
10
-
Power Ground reference for logic and I/O pins.
13
24
29
36
39
44
53
60
GNDA
4
-
Power The ground reference for the analog circuits (ADC,
Analog Comparators, etc.). These are separated
from GND to minimize the electrical noise contained
on VDD from affecting the analog functions.
LDO
Power
7
-
Power Low drop-out regulator output voltage. This pin
requires an external capacitor between the pin and
GND of 1 µF or greater. The LDO pin must also be
connected to the VDDC pins at the board level in
addition to the decoupling capacitor(s).
VDD
12
-
Power Positive supply for I/O and some logic.
28
43
59
VDDA
3
-
Power The positive supply 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 supplied with a voltage that meets the
specification in Table 20-2 on page 745, regardless
of system implementation.
VDDC
9
-
Power Positive supply for most of the logic function,
23
including the processor core and most peripherals.
38
The voltage on this pin is 1.3 V and is supplied by
54
the on-chip LDO. The VDDC pins should only be
connected to the LDO pin and an external capacitor
as specified in Table 20-6 on page 750.
January 21, 2012
739
Texas Instruments-Production Data