LM3S9B81 Datasheet, PDF (1021/1155 Pages) Texas Instruments – Stellaris® LM3S9B81 Microcontroller

Stellaris® LM3S9B81 Microcontroller
Table 23-2. Signals by Pin Number (continued)
Pin Number
Pin Name
Pin Type Buffer Type^a Description
25
PC4
I/O
TTL
GPIO port C bit 4.
CCP1
I/O
TTL
Capture/Compare/PWM 1.
CCP2
I/O
TTL
Capture/Compare/PWM 2.
CCP4
I/O
TTL
Capture/Compare/PWM 4.
CCP5
I/O
TTL
Capture/Compare/PWM 5.
EPI0S2
I/O
TTL
EPI module 0 signal 2.
26
PA0
I/O
TTL
GPIO port A bit 0.
I2C1SCL
I/O
OD
I²C module 1 clock.
U0Rx
I
TTL
UART module 0 receive. When in IrDA mode, this signal has IrDA
modulation.
U1Rx
I
TTL
UART module 1 receive. When in IrDA mode, this signal has IrDA
modulation.
27
PA1
I/O
TTL
GPIO port A bit 1.
I2C1SDA
I/O
OD
I²C module 1 data.
U0Tx
O
TTL
UART module 0 transmit. When in IrDA mode, this signal has IrDA
modulation.
U1Tx
O
TTL
UART module 1 transmit. When in IrDA mode, this signal has IrDA
modulation.
28
PA2
I/O
TTL
GPIO port A bit 2.
I2S0RXSD
I/O
TTL
I²S module 0 receive data.
SSI0Clk
I/O
TTL
SSI module 0 clock.
29
PA3
I/O
TTL
GPIO port A bit 3.
I2S0RXMCLK
I/O
TTL
I²S module 0 receive master clock.
SSI0Fss
I/O
TTL
SSI module 0 frame.
30
PA4
I/O
TTL
GPIO port A bit 4.
CAN0Rx
I2S0TXSCK
I
TTL
CAN module 0 receive.
I/O
TTL
I²S module 0 transmit clock.
SSI0Rx
I
TTL
SSI module 0 receive.
31
PA5
I/O
TTL
GPIO port A bit 5.
CAN0Tx
I2S0TXWS
O
TTL
CAN module 0 transmit.
I/O
TTL
I²S module 0 transmit word select.
SSI0Tx
O
TTL
SSI module 0 transmit.
32
VDD
-
Power Positive supply for I/O and some logic.
33
ERBIAS
O
Analog 12.4-kΩ resistor (1% precision) used internally for Ethernet PHY.
34
PA6
I/O
TTL
GPIO port A bit 6.
CAN0Rx
I
TTL
CAN module 0 receive.
CCP1
I2C1SCL
I/O
TTL
Capture/Compare/PWM 1.
I/O
OD
I²C module 1 clock.
U1CTS
I
TTL
UART module 1 Clear To Send modem status input signal.
USB0EPEN
O
TTL
Optionally used in Host mode to control an external power source
to supply power to the USB bus.
June 29, 2010
Texas Instruments-Advance Information
1021