LM3S2139 Luminary Micro, Inc, LM3S2139 Datasheet - Page 465

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

July 25, 2008
Table 18-8. GPIO Pins and Alternate Functions
SSI
System Control &
Clocks
UART
Function
GPIO Pin
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PB0
PB1
PB2
PB3
PB4
PB5
VDDA
SSI0Clk
SSI0Fss
SSI0Rx
SSI0Tx
CMOD0
CMOD1
OSC0
OSC1
RST
TRST
U0Rx
U0Tx
U1Rx
U1Tx
Pin Name
Number
M11
E11
B10
H11
Pin
L11
M4
M5
M3
C7
A8
H2
H1
L4
L5
L3
Pin Number
E12
D12
C11
C12
M3
M4
M5
M6
A6
B7
L3
L4
L5
L6
Preliminary
Pin Type
I/O
I/O
I/O
I/O
O
O
O
O
-
I
I
I
I
I
I
Analog
Analog
Buffer
Power
Type
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
Multiplexed Function
SSI0Clk
SSI0Fss
I2C0SCL
I2C0SDA
contained on VDD from affecting the analog
functions.
The positive supply (3.3 V) for the analog circuits
(ADC, Analog Comparators, etc.). These are
separated from VDD to minimize the electrical noise
contained on VDD from affecting the analog
functions.
SSI module 0 clock
SSI module 0 frame
SSI module 0 receive
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
C0-
C1-
LM3S2139 Microcontroller
Description
Multiplexed Function
465