LM3S2139 Luminary Micro, Inc, LM3S2139 Datasheet - Page 453

• Manufacturer Part Number: LM3S2139
• Description: Lm3s2139 Arm Microcontroller
• Manufacturer: Luminary Micro, Inc

July 25, 2008
Table 18-4. GPIO Pins and Alternate Functions
System Control &
Clocks
UART
Function
GPIO Pin
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PC0
PC1
PC2
PC3
PC4
PC5
PC6
SSI0Tx
CMOD0
CMOD1
OSC0
OSC1
RST
TRST
U0Rx
U0Tx
U1Rx
U1Tx
Pin Name
Number
Pin
31
65
76
48
49
64
89
26
27
12
13
Pin Number
26
27
28
29
30
31
34
35
66
67
70
71
92
91
90
89
80
79
78
77
25
24
23
Preliminary
Pin Type
I/O
I/O
O
O
O
O
I
I
I
I
I
Analog
Analog
Buffer
Type
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
Multiplexed Function
SSI0Clk
SSI0Fss
I2C0SCL
I2C0SDA
SSI module 0 transmit
CPU Mode bit 0. Input must be set to logic 0
(grounded); other encodings reserved.
CPU Mode bit 1. Input must be set to logic 0
(grounded); other encodings reserved.
Main oscillator crystal input or an external clock
reference input.
Main oscillator crystal output.
System reset input.
JTAG TRSTn
UART module 0 receive. When in IrDA mode, this
signal has IrDA modulation.
UART module 0 transmit. When in IrDA mode, this
signal has IrDA modulation.
UART module 1 receive. When in IrDA mode, this
signal has IrDA modulation.
UART module 1 transmit. When in IrDA mode, this
signal has IrDA modulation.
SSI0Rx
SSI0Tx
U0Rx
U0Tx
CCP1
CCP4
CCP0
CCP2
TRST
CCP5
C0-
C1-
C0+
TCK
TMS
TDI
TDO
C1+
C2+
LM3S2139 Microcontroller
Description
Multiplexed Function
SWCLK
SWDIO
SWO
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