LM3S6753 Datasheet, PDF (569/625 Pages) Texas Instruments – Stellaris LM3S6753 Microcontroller

Stellaris® LM3S6753 Microcontroller
Table 21-6. Signals by Signal Name (continued)
Pin Name
Pin Number Pin Type Buffer Type^a Description
TXOP
M8
O
Analog TXOP of the Ethernet PHY.
U0Rx
L3
I
TTL
UART module 0 receive. When in IrDA mode, this signal has
IrDA modulation.
U0Tx
M3
O
TTL
UART module 0 transmit. When in IrDA mode, this signal has
IrDA modulation.
U1Rx
H2
I
TTL
UART module 1 receive. When in IrDA mode, this signal has
IrDA modulation.
U1Tx
H1
O
TTL
UART module 1 transmit. When in IrDA mode, this signal has
IrDA modulation.
VBAT
L12
-
Power Power source for the Hibernation module. It is normally
connected to the positive terminal of a battery and serves as
the battery backup/Hibernation module power-source supply.
VCCPHY
C10
-
Power VCC of the Ethernet PHY.
D10
D11
VDD25
C3
-
Power Positive supply for most of the logic function, including the
D3
processor core and most peripherals.
F3
G3
VDD33
E10
-
Power Positive supply for I/O and some logic.
G10
G11
G12
H10
K7
K8
K9
VDDA
C6
-
Power The positive supply (3.3 V) for the analog circuits (ADC,
C7
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.
WAKE
M10
I
TTL
An external input that brings the processor out of Hibernate
mode when asserted.
XOSC0
K11
I
Analog Hibernation module oscillator crystal input or an external clock
reference input. Note that this is either a 4.194304-MHz crystal
or a 32.768-kHz oscillator for the Hibernation module RTC.
See the CLKSEL bit in the HIBCTL register.
XOSC1
K12
O
Analog Hibernation module oscillator crystal output. Leave
unconnected when using a single-ended clock source.
XTALNPHY
J1
O
TTL
Ethernet PHY XTALN 25-MHz oscillator crystal output. Leave
unconnected when using a single-ended 25-MHz clock input
connected to the XTALPPHY pin.
XTALPPHY
J2
I
TTL
Ethernet PHY XTALP 25-MHz oscillator crystal input or
external clock reference input.
a. The TTL designation indicates the pin has TTL-compatible voltage levels.
April 05, 2010
569
Texas Instruments-Production Data