LM3S5G31 Datasheet, PDF (1104/1223 Pages) Texas Instruments – Stellaris LM3S5G31 Microcontroller

Signal Tables
Table 23-4. Signals by Function, Except for GPIO (continued)
Function
Pin Name Pin Number Pin Type Buffer Type^a
Description
U0Rx
26
I
TTL
UART module 0 receive. When in IrDA mode, this
signal has IrDA modulation.
U0Tx
27
O
TTL
UART module 0 transmit. When in IrDA mode, this
signal has IrDA modulation.
U1CTS
2
I
TTL
UART module 1 Clear To Send modem flow control
10
input signal.
34
U1DCD
1
I
TTL
UART module 1 Data Carrier Detect modem status
11
input signal.
35
U1DSR
47
I
TTL
UART module 1 Data Set Ready modem output
control line.
U1DTR
40
O
TTL
UART module 1 Data Terminal Ready modem
100
status input signal.
U1RI
37
I
TTL
UART module 1 Ring Indicator modem status input
41
signal.
97
UART
U1RTS
U1Rx
43
O
TTL
UART module 1 Request to Send modem flow
61
control output line.
10
I
TTL
UART module 1 receive. When in IrDA mode, this
12
signal has IrDA modulation.
23
26
66
92
U1Tx
11
O
TTL
UART module 1 transmit. When in IrDA mode, this
13
signal has IrDA modulation.
22
27
67
91
U2Rx
10
I
TTL
UART module 2 receive. When in IrDA mode, this
19
signal has IrDA modulation.
92
98
U2Tx
6
O
TTL
UART module 2 transmit. When in IrDA mode, this
11
signal has IrDA modulation.
18
99
USB0DM
70
I/O
Analog Bidirectional differential data pin (D- per USB
specification) for USB0.
USB
USB0DP
71
I/O
Analog Bidirectional differential data pin (D+ per USB
specification) for USB0.
USB0RBIAS
73
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.
1104
Texas Instruments-Production Data
July 03, 2014