LM3S1968 Datasheet, PDF (638/709 Pages) List of Unclassifed Manufacturers – Microcontroller

Signal Tables
Table 19-5. Signals by Pin Number (continued)
Pin Number
Pin Name
Pin Type Buffer Type^a Description
D11
PH2
I/O
TTL
GPIO port H bit 2.
PB1
D12
CCP2
I/O
TTL
GPIO port B bit 1.
I/O
TTL
Capture/Compare/PWM 2.
E1
NC
-
-
No connect. Leave the pin electrically unconnected/isolated.
E2
NC
-
-
No connect. Leave the pin electrically unconnected/isolated.
LDO
E3
-
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 VDD25 pins at the board level
in addition to the decoupling capacitor(s).
E10
VDD33
-
Power Positive supply for I/O and some logic.
E11
CMOD0
I
TTL
CPU Mode bit 0. Input must be set to logic 0 (grounded); other
encodings reserved.
PB0
E12
CCP0
I/O
TTL
GPIO port B bit 0.
I/O
TTL
Capture/Compare/PWM 0.
F1
NC
-
-
No connect. Leave the pin electrically unconnected/isolated.
F2
NC
-
-
No connect. Leave the pin electrically unconnected/isolated.
F3
VDD25
-
Power Positive supply for most of the logic function, including the
processor core and most peripherals.
F10
GND
-
Power Ground reference for logic and I/O pins.
F11
GND
-
Power Ground reference for logic and I/O pins.
F12
GND
-
Power Ground reference for logic and I/O pins.
PD0
I/O
TTL
GPIO port D bit 0.
G1
IDX0
I
TTL
QEI module 0 index.
PD1
I/O
TTL
GPIO port D bit 1.
G2
PWM1
O
TTL
PWM 1. This signal is controlled by PWM Generator 0.
G3
VDD25
-
Power Positive supply for most of the logic function, including the
processor core and most peripherals.
G10
VDD33
-
Power Positive supply for I/O and some logic.
G11
VDD33
-
Power Positive supply for I/O and some logic.
G12
VDD33
-
Power Positive supply for I/O and some logic.
PD3
I/O
TTL
GPIO port D bit 3.
H1
U1Tx
O
TTL
UART module 1 transmit. When in IrDA mode, this signal has IrDA
modulation.
PD2
I/O
TTL
GPIO port D bit 2.
H2
U1Rx
I
TTL
UART module 1 receive. When in IrDA mode, this signal has IrDA
modulation.
H3
GND
-
Power Ground reference for logic and I/O pins.
H10
VDD33
-
Power Positive supply for I/O and some logic.
H11
RST
I
TTL
System reset input.
PF1
H12
IDX1
I/O
TTL
GPIO port F bit 1.
I
TTL
QEI module 1 index.
PG2
I/O
TTL
GPIO port G bit 2.
J1
PWM0
O
TTL
PWM 0. This signal is controlled by PWM Generator 0.
J2
PG3
I/O
TTL
GPIO port G bit 3.
638
July 15, 2014
Texas Instruments-Production Data