LM3S9B81 Datasheet, PDF (1073/1155 Pages) Texas Instruments – Stellaris® LM3S9B81 Microcontroller

Stellaris® LM3S9B81 Microcontroller
Table 23-9. Signals by Function, Except for GPIO (continued)
Function
Pin Name Pin Number Pin Type Buffer Type^a
Description
System Control &
Clocks
NMI
OSC0
A8
I
TTL
Non-maskable interrupt.
L11
I
Analog Main oscillator crystal input or an external clock
reference input.
OSC1
M11
O
Analog Main oscillator crystal output. Leave unconnected
when using a single-ended clock source.
RST
H11
I
TTL
System reset input.
UART
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 status input
G1
signal.
L6
M10
U1DCD
B1
I
TTL
UART module 1 Data Carrier Detect modem status
G2
input signal.
M6
K11
U1DSR
M9
I
TTL
UART module 1 Data Set Ready modem output
K12
control line.
U1DTR
L12
O
TTL
UART module 1 Data Terminal Ready modem
A2
status input signal.
U1RI
B5
I
TTL
UART module 1 Ring Indicator modem status input
signal.
U1RTS
L10
O
TTL
UART module 1 Request to Send modem output
H12
control line.
U1Rx
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
June 29, 2010
Texas Instruments-Advance Information
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