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LM3S9B81 Datasheet, PDF (1031/1155 Pages) Texas Instruments – Stellaris® LM3S9B81 Microcontroller
Stellaris® LM3S9B81 Microcontroller
Table 23-3. Signals by Signal Name (continued)
Pin Name
GND
GNDA
Pin Number Pin Mux / Pin
Assignment
9
fixed
21
45
57
69
82
94
4
fixed
Pin Type
-
-
I2C0SCL
I2C0SDA
I2C1SCL
I2C1SDA
I2S0RXMCLK
I2S0RXSCK
I2S0RXSD
I2S0RXWS
I2S0TXMCLK
I2S0TXSCK
I2S0TXSD
I2S0TXWS
LDO
72
PB2 (1)
I/O
65
PB3 (1)
I/O
14
PJ0 (11)
I/O
19
PG0 (3)
26
PA0 (8)
34
PA6 (1)
18
PG1 (3)
I/O
27
PA1 (8)
35
PA7 (1)
87
PJ1 (11)
29
PA3 (9)
I/O
98
PD5 (8)
10
PD0 (8)
I/O
28
PA2 (9)
I/O
97
PD4 (8)
11
PD1 (8)
I/O
61
PF1 (8)
I/O
30
PA4 (9)
I/O
90
PB6 (9)
99
PD6 (8)
5
PE5 (9)
I/O
47
PF0 (8)
6
PE4 (9)
I/O
31
PA5 (9)
100
PD7 (8)
7
fixed
-
LED0
LED1
MDIO
NC
NMI
59
PF3 (1)
O
60
PF2 (1)
O
58
fixed
I/O
51
fixed
-
89
PB7 (4)
I
Buffer Typea Description
Power Ground reference for logic and I/O pins.
Power
OD
OD
OD
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.
I2C module 0 clock.
I2C module 0 data.
I2C module 1 clock.
OD
I2C module 1 data.
TTL
I2S module 0 receive master clock.
TTL
I2S module 0 receive clock.
TTL
I2S module 0 receive data.
TTL
I2S module 0 receive word select.
TTL
I2S module 0 transmit master clock.
TTL
I2S module 0 transmit clock.
TTL
I2S module 0 transmit data.
TTL
I2S module 0 transmit word select.
Power
TTL
TTL
OD
-
TTL
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).
Ethernet LED 0.
Ethernet LED 1.
MDIO of the Ethernet PHY.
No connect. Leave the pin electrically
unconnected/isolated.
Non-maskable interrupt.
June 29, 2010
Texas Instruments-Advance Information
1031