LM3S6952 Datasheet, PDF (561/626 Pages) Texas Instruments – Stellaris LM3S6952 Microcontroller

Stellaris® LM3S6952 Microcontroller
Table 21-3. Signals by Function, Except for GPIO (continued)
Function
Pin Name Pin Number Pin Type Buffer Type^a
Description
System Control &
Clocks
CMOD0
65
I
TTL
CPU Mode bit 0. Input must be set to logic 0
(grounded); other encodings reserved.
CMOD1
76
I
TTL
CPU Mode bit 1. Input must be set to logic 0
(grounded); other encodings reserved.
OSC0
48
I
Analog Main oscillator crystal input or an external clock
reference input.
OSC1
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
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.
U1Rx
12
I
TTL
UART module 1 receive. When in IrDA mode, this
signal has IrDA modulation.
U1Tx
13
O
TTL
UART module 1 transmit. When in IrDA mode, this
signal has IrDA modulation.
U2Rx
19
I
TTL
UART module 2 receive. When in IrDA mode, this
signal has IrDA modulation.
U2Tx
18
O
TTL
UART module 2 transmit. When in IrDA mode, this
signal has IrDA modulation.
a. The TTL designation indicates the pin has TTL-compatible voltage levels.
Table 21-4. 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
70
PB3
71
PB4
92
PB5
91
PB6
90
PB7
89
PC0
80
PC1
79
PC2
78
PC3
77
Multiplexed Function
U0Rx
U0Tx
SSI0Clk
SSI0Fss
SSI0Rx
SSI0Tx
CCP1
PWM2
PWM3
I2C0SCL
I2C0SDA
C0-
C1-
C0+
TRST
TCK
TMS
TDI
TDO
Multiplexed Function
C0o
SWCLK
SWDIO
SWO
April 05, 2010
561
Texas Instruments-Production Data