LM3S1601 Datasheet, PDF (522/587 Pages) Texas Instruments – ARM and Thumb are registered trademarks and Cortex is a trademark

Signal Tables
Table 16-3. Signals by Function, Except for GPIO (continued)
Function
Pin Name Pin Number Pin Type Buffer Type^a
Description
HIB
51
O
OD
An open-drain output with internal pull-up that
indicates the processor is in Hibernate mode.
VBAT
55
-
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.
Hibernate
WAKE
50
I
TTL
An external input that brings the processor out of
Hibernate mode when asserted.
XOSC0
52
I
Analog Hibernation module oscillator crystal input or an
external clock reference input. Note that this is
either a crystal or a 32.768-kHz oscillator for the
Hibernation module RTC.
XOSC1
53
O
Analog Hibernation module oscillator crystal output. Leave
unconnected when using a single-ended clock
source.
I2C0SCL
70
I/O
OD
I²C module 0 clock.
I2C0SDA
71
I/O
OD
I²C module 0 data.
I2C
I2C1SCL
34
I/O
OD
I²C module 1 clock.
I2C1SDA
35
I/O
OD
I²C module 1 data.
SWCLK
80
I
TTL
JTAG/SWD CLK.
SWDIO
79
I/O
TTL
JTAG TMS and SWDIO.
SWO
77
O
TTL
JTAG TDO and SWO.
TCK
JTAG/SWD/SWO
TDI
80
I
TTL
JTAG/SWD CLK.
78
I
TTL
JTAG TDI.
TDO
77
O
TTL
JTAG TDO and SWO.
TMS
79
I/O
TTL
JTAG TMS and SWDIO.
TRST
89
I
TTL
JTAG TRST.
522
June 19, 2012
Texas Instruments-Production Data