AM3359, AM3358, AM3357, AM3356, AM3354, AM3352
SPRS717H –OCTOBER 2011–REVISED MAY 2015
www.ti.com
4.2 Pin Attributes
The AM335x Sitara Processors Technical Reference Manual (SPRUH73) and this document may
reference internal signal names when discussing peripheral input and output signals since many of the
AM335x package terminals can be multiplexed to one of several peripheral signals. The following table
has a Pin Name column that lists all device terminal names and a Signal Name column that lists all
internal signal names multiplexed to each terminal which provides a cross reference of internal signal
names to terminal names. This table also identifies other important terminal characteristics.
1. BALL NUMBER: Package ball numbers associated with each signals.
2. PIN NAME: The name of the package pin or terminal.
Note: The table does not take into account subsystem terminal multiplexing options.
3. SIGNAL NAME: The signal name for that pin in the mode being used.
4. MODE: Multiplexing mode number.
(a) Mode 0 is the primary mode; this means that when mode 0 is set, the function mapped on the
terminal corresponds to the name of the terminal. There is always a function mapped on the
primary mode. Notice that primary mode is not necessarily the default mode.
Note: The default mode is the mode at the release of the reset; also see the RESET REL. MODE
column.
(b) Modes 1 to 7 are possible modes for alternate functions. On each terminal, some modes are
effectively used for alternate functions, while some modes are not used and do not correspond to a
functional configuration.
5. TYPE: Signal direction
– I = Input
– O = Output
– I/O = Input and Output
– D = Open drain
– DS = Differential
– A = Analog
– PWR = Power
– GND = Ground
Note: In the safe_mode, the buffer is configured in high-impedance.
6. BALL RESET STATE: State of the terminal while the active low PWRONRSTn terminal is low.
– 0: The buffer drives V
OL
(pulldown or pullup resistor not activated)
0(PD): The buffer drives V
OL
with an active pulldown resistor
– 1: The buffer drives V
OH
(pulldown or pullup resistor not activated)
1(PU): The buffer drives V
OH
with an active pullup resistor
– Z: High-impedance
– L: High-impedance with an active pulldown resistor
– H : High-impedance with an active pullup resistor
7. BALL RESET REL. STATE: State of the terminal after the active low PWRONRSTn terminal
transitions from low to high.
– 0: The buffer drives V
OL
(pulldown or pullup resistor not activated)
0(PD): The buffer drives V
OL
with an active pulldown resistor
– 1: The buffer drives V
OH
(pulldown or pullup resistor not activated)
1(PU): The buffer drives V
OH
with an active pullup resistor
– Z: High-impedance.
– L: High-impedance with an active pulldown resistor
– H : High-impedance with an active pullup resistor
8. RESET REL. MODE: The mode is automatically configured after the active low PWRONRSTn terminal
transitions from low to high.
9. POWER: The voltage supply that powers the terminal’s IO buffers.
18 Terminal Configuration and Functions Copyright © 2011–2015, Texas Instruments Incorporated
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Product Folder Links: AM3359 AM3358 AM3357 AM3356 AM3354 AM3352
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