DRA790 Datasheet, PDF (106/436 Pages) Texas Instruments – Infotainment Applications Processor

DRA790, DRA791
DRA793, DRA797
SPRS968A – AUGUST 2016 – REVISED FEBRUARY 2017
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4.4 Pin Multiplexing
Table 4-32 describes the device pin multiplexing (no characteristics are provided in this table).
NOTE
Table 4-32, Pin Multiplexing doesn't take into account subsystem multiplexing signals. Subsystem multiplexing signals are described in
Section 4.3, Signal Descriptions.
NOTE
For more information, see the Control Module / Control Module Functional Description / PAD Functional Multiplexing and Configuration
section of the Device TRM.
NOTE
Configuring two pins to the same input signal is not supported as it can yield unexpected results. This can be easily prevented with the
proper software configuration (Hi-Z mode is not an input signal).
NOTE
When a pad is set into a pin multiplexing mode which is not defined, that pad’s behavior is undefined. This should be avoided.
NOTE
In some cases Table 4-32 may present more than one signal per muxmode for the same ball. First signal in the list is the dominant
function as selected via CTRL_CORE_PAD_* register.
All other signals are virtual functions that present alternate multiplexing options. This virtual functions are controlled via
CTRL_CORE_ALT_SELECT_MUX or CTRL_CORE_VIP_MUX_SELECT register. For more information on how to use this options,
please refer to Device TRM, Chapter Control Module, Section Pad Configuration Registers.
ADDRESS REGISTER NAME
BALL
NUMBER
0
1
P25
ddr1_dqm3
Y23
ddr1_d10
P21
ddr1_d27
T3
mlbp_sig_p
U25
ddr1_d17
106 Terminal Configuration and Functions
Table 4-32. Pin Multiplexing
MUXMODE FIELD SETTINGS (CTRL_CORE_PAD_*[3:0])
2
3*
4*
5*
6*
7
8*
9
10
11
12
13
14*
15
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