Datasheet

Table 21-3. Signals by Function, Except for GPIO (continued)
DescriptionBuffer Type
a
Pin TypePin NumberPin NameFunction
Ground reference for logic and I/O pins.Power-9
15
21
33
39
45
54
57
63
69
82
87
94
GND
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.
Power-4
97
GNDA
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 VDD25 pins at the board level in
addition to the decoupling capacitor(s).
Power-7LDO
Positive supply for I/O and some logic.Power-8
20
32
44
56
68
81
93
VDD
Positive supply for most of the logic function,
including the processor core and most peripherals.
Power-14
38
62
88
VDD25
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 “Recommended DC Operating
Conditions” on page 748, regardless of system
implementation.
Power-3
98
VDDA
QEI module 0 index.TTLI100IDX0
QEI
QEI module 1 index.TTLI61IDX1
QEI module 0 phase A.TTLI25PhA0
QEI module 1 phase A.TTLI75PhA1
QEI module 0 phase B.TTLI23PhB0
QEI module 1 phase B.TTLI74PhB1
SSI module 0 clockTTLI/O28SSI0Clk
SSI
SSI module 0 frame signalTTLI/O29SSI0Fss
SSI module 0 receiveTTLI30SSI0Rx
SSI module 0 transmitTTLO31SSI0Tx
729June 18, 2012
Texas Instruments-Production Data
Stellaris
®
LM3S8962 Microcontroller
NRND: Not recommended for new designs.