LM3S5737 Datasheet, PDF (764/833 Pages) Texas Instruments – Stellaris® LM3S5737 Microcontroller

Signal Tables
Table 19-3. Signals by Function, Except for GPIO (continued)
Function
Pin Name Pin Number Pin Type Buffer Type^a
Description
NMI
89
I
TTL
Non-maskable interrupt.
System Control &
Clocks
OSC0
OSC1
48
I
Analog Main oscillator crystal input or an external clock
reference input.
49
O
Analog Main oscillator crystal output. Leave unconnected
when using a single-ended clock source.
RST
64
I
TTL
System reset input.
UART
U0Rx
U0Tx
26
I
TTL
UART module 0 receive. When in IrDA mode, this
signal has IrDA modulation.
27
O
TTL
UART module 0 transmit. When in IrDA mode, this
signal has IrDA modulation.
USB0DM
70
I/O
Analog Bidirectional differential data pin (D- per USB
specification) for USB0.
USB0DP
71
I/O
Analog Bidirectional differential data pin (D+ per USB
specification) for USB0.
USB
USB0EPEN
24
O
TTL
Optionally used in Host mode to control an external
power source to supply power to the USB bus.
USB0PFLT
23
I
TTL
Optionally used in Host mode by an external power
source to indicate an error state by that power
source.
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.
Table 19-4. GPIO Pins and Alternate Functions
IO
Pin Number
PA0
26
PA1
27
PA2
28
PA3
29
PA4
30
PA5
31
PA6
34
PA7
35
PB0
66
PB1
67
PB2
72
PB3
65
PB4
92
PB5
91
PB6
90
PB7
89
PC0
80
PC1
79
PC2
78
PC3
77
Multiplexed Function
U0Rx
U0Tx
SSI0Clk
SSI0Fss
SSI0Rx
SSI0Tx
I2C1SCL
I2C1SDA
CCP0
CCP1
I2C0SCL
I2C0SDA
CCP2
NMI
TCK
TMS
TDI
TDO
Multiplexed Function
SWCLK
SWDIO
SWO
764
November 17, 2011
Texas Instruments-Production Data