LM3S1968 Datasheet, PDF (637/709 Pages) List of Unclassifed Manufacturers – Microcontroller

Stellaris^® LM3S1968 Microcontroller
Table 19-5. Signals by Pin Number (continued)
Pin Number
Pin Name
Pin Type Buffer Type^a Description
PC2
I/O
TTL
GPIO port C bit 2.
B8
TDI
I
TTL
JTAG TDI.
PC1
I/O
TTL
GPIO port C bit 1.
B9
SWDIO
I/O
TTL
JTAG TMS and SWDIO.
TMS
I/O
TTL
JTAG TMS and SWDIO.
B10
CMOD1
I
TTL
CPU Mode bit 1. Input must be set to logic 0 (grounded); other
encodings reserved.
PE2
I/O
TTL
GPIO port E bit 2.
B11
SSI1Rx
I
TTL
SSI module 1 receive.
PE1
B12
SSI1Fss
I/O
TTL
GPIO port E bit 1.
I/O
TTL
SSI module 1 frame signal.
C1
NC
-
-
No connect. Leave the pin electrically unconnected/isolated.
C2
NC
-
-
No connect. Leave the pin electrically unconnected/isolated.
C3
VDD25
-
Power Positive supply for most of the logic function, including the
processor core and most peripherals.
C4
GND
-
Power Ground reference for logic and I/O pins.
C5
GND
-
Power Ground reference for logic and I/O pins.
VDDA
C6
-
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 “Recommended DC Operating
Conditions” on page 653, regardless of system implementation.
VDDA
C7
-
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 “Recommended DC Operating
Conditions” on page 653, regardless of system implementation.
PH1
I/O
TTL
GPIO port H bit 1.
C8
PWM3
O
TTL
PWM 3. This signal is controlled by PWM Generator 1.
PH0
I/O
TTL
GPIO port H bit 0.
C9
PWM2
O
TTL
PWM 2. This signal is controlled by PWM Generator 1.
PG7
C10
PhB1
I/O
TTL
GPIO port G bit 7.
I
TTL
QEI module 1 phase B.
PB2
C11
I2C0SCL
I/O
TTL
GPIO port B bit 2.
I/O
OD
I²C module 0 clock.
PB3
C12
I2C0SDA
I/O
TTL
GPIO port B bit 3.
I/O
OD
I²C module 0 data.
D1
NC
-
-
No connect. Leave the pin electrically unconnected/isolated.
D2
NC
-
-
No connect. Leave the pin electrically unconnected/isolated.
D3
VDD25
-
Power Positive supply for most of the logic function, including the
processor core and most peripherals.
PH3
D10
Fault
I/O
TTL
GPIO port H bit 3.
I
TTL
PWM Fault.
July 15, 2014
637
Texas Instruments-Production Data