LM3S5K31 Datasheet, PDF (1045/1121 Pages) Texas Instruments – Stellaris® LM3S5K31 Microcontroller

Stellaris^® LM3S5K31 Microcontroller
Table 22-9. Signals by Function, Except for GPIO (continued)
Function
Pin Name Pin Number Pin Type Buffer Type^a
Description
U0Rx
L3
I
TTL
UART module 0 receive. When in IrDA mode, this
signal has IrDA modulation.
U0Tx
M3
O
TTL
UART module 0 transmit. When in IrDA mode, this
signal has IrDA modulation.
U1CTS
A1
I
TTL
UART module 1 Clear To Send modem flow control
G1
input signal.
L6
U1DCD
B1
I
TTL
UART module 1 Data Carrier Detect modem status
G2
input signal.
M6
U1DSR
M9
I
TTL
UART module 1 Data Set Ready modem output
control line.
U1DTR
M7
O
TTL
UART module 1 Data Terminal Ready modem
A2
status input signal.
U1RI
L7
I
TTL
UART module 1 Ring Indicator modem status input
K3
signal.
B5
UART
U1RTS
U1Rx
M8
O
TTL
UART module 1 Request to Send modem flow
H12
control output line.
G1
I
TTL
UART module 1 receive. When in IrDA mode, this
H2
signal has IrDA modulation.
M2
L3
E12
A6
U1Tx
G2
O
TTL
UART module 1 transmit. When in IrDA mode, this
H1
signal has IrDA modulation.
L2
M3
D12
B7
U2Rx
G1
I
TTL
UART module 2 receive. When in IrDA mode, this
K1
signal has IrDA modulation.
A6
C6
U2Tx
B2
O
TTL
UART module 2 transmit. When in IrDA mode, this
G2
signal has IrDA modulation.
K2
A3
USB0DM
C11
I/O
Analog Bidirectional differential data pin (D- per USB
specification) for USB0.
USB
USB0DP
C12
I/O
Analog Bidirectional differential data pin (D+ per USB
specification) for USB0.
USB0RBIAS
B12
O
Analog 9.1-kΩ resistor (1% precision) used internally for
USB analog circuitry.
a. The TTL designation indicates the pin has TTL-compatible voltage levels.
Table 22-10. GPIO Pins and Alternate Functions
IO
Pin
Analog
Function
1
2
Digital Function (GPIOPCTL PMCx Bit Field Encoding)^a
3
4
5
6
7
8
9
10
11
PA0 L3
-
U0Rx
-
-
-
-
-
- I2C1SCL U1Rx
-
-
January 20, 2012
Texas Instruments-Production Data
1045