LM3S9B81 Datasheet, PDF (1018/1155 Pages) Texas Instruments – Stellaris® LM3S9B81 Microcontroller

Signal Tables
23.1 100-Pin LQFP Package Pin Tables
Table 23-2. Signals by Pin Number
Pin Number
1
2
3
Pin Name
PE7
AIN0
C2o
U1DCD
PE6
AIN1
C1o
U1CTS
VDDA
Pin Type
I/O
I
O
I
I/O
I
O
I
-
4
GNDA
-
5
PE5
I/O
AIN2
I
CAN2Tx
O
CCP5
I/O
I2S0TXSD
I/O
6
PE4
I/O
AIN3
I
CAN2Rx
I
CCP2
I/O
CCP3
I/O
I2S0TXWS
I/O
U2Tx
O
7
LDO
-
8
VDD
-
9
GND
-
Buffer Type^a Description
TTL
GPIO port E bit 7.
Analog Analog-to-digital converter input 0.
TTL
Analog comparator 2 output.
TTL
UART module 1 Data Carrier Detect modem status input signal.
TTL
GPIO port E bit 6.
Analog Analog-to-digital converter input 1.
TTL
Analog comparator 1 output.
TTL
UART module 1 Clear To Send modem status input signal.
Power
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. VDDA pins must be connected to 3.3 V, regardless of
system implementation.
Power
The ground reference for the analog circuits (ADC, Analog
Comparators, etc.). These are separated from GND to minimize
the electrical noise contained on VDD from affecting the analog
functions.
TTL
GPIO port E bit 5.
Analog Analog-to-digital converter input 2.
TTL
CAN module 2 transmit.
TTL
Capture/Compare/PWM 5.
TTL
I²S module 0 transmit data.
TTL
GPIO port E bit 4.
Analog Analog-to-digital converter input 3.
TTL
CAN module 2 receive.
TTL
Capture/Compare/PWM 2.
TTL
Capture/Compare/PWM 3.
TTL
I²S module 0 transmit word select.
TTL
UART module 2 transmit. When in IrDA mode, this signal has IrDA
modulation.
Power
Low drop-out regulator output voltage. This pin requires an external
capacitor between the pin and GND of 1 µF or greater. When the
on-chip LDO is used to provide power to the logic, the LDO pin
must also be connected to the VDDC pins at the board level in
addition to the decoupling capacitor(s).
Power Positive supply for I/O and some logic.
Power Ground reference for logic and I/O pins.
1018
Texas Instruments-Advance Information
June 29, 2010