ADV
ANCEINFORMA
TION
TMS320F28377S, TMS320F28376S, TMS320F28375S, TMS320F28374S
SPRS881A – AUGUST 2014 – REVISED JUNE 2015
Table 4-1. Signal Descriptions (continued)
TERMINAL
ZWT
PTP
PZP
I/O/Z
DESCRIPTION
MUX
NAME
BALL
PIN
PIN
POSITION
NO.
NO.
NO.
GPIO121
0, 4, 8, 12
I/O
General-purpose input/output 121
EM2OE
3
W16
–
–
O
External memory interface 2 output enable
USB0EPEN
15
I/O
USB external regulator enable
GPIO122
0, 4, 8, 12
I/O
General-purpose input/output 122
SPISIMOC
6
T8
–
–
I/O
SPI-C slave in, master out
SD1_D1
7
I
Sigma-Delta 1 channel 1 data input
GPIO123
0, 4, 8, 12
I/O
General-purpose input/output 123
SPISOMIC
6
U8
–
–
I/O
SPI-C slave out, master in
SD1_C1
7
I
Sigma-Delta 1 channel 1 clock input
GPIO124
0, 4, 8, 12
I/O
General-purpose input/output 124
SPICLKC
6
V8
–
–
I/O
SPI-C clock
SD1_D2
7
I
Sigma-Delta 1 channel 2 data input
GPIO125
0, 4, 8, 12
I/O
General-purpose input/output 125
SPISTEC
6
T9
–
–
I/O
SPI-C slave transmit enable
SD1_C2
7
I
Sigma-Delta 1 channel 2 clock input
GPIO126
0, 4, 8, 12
I/O
General-purpose input/output 126
U9
–
–
SD1_D3
7
I
Sigma-Delta 1 channel 3 data input
GPIO127
0, 4, 8, 12
I/O
General-purpose input/output 127
V9
–
–
SD1_C3
7
I
Sigma-Delta 1 channel 3 clock input
GPIO128
0, 4, 8, 12
I/O
General-purpose input/output 128
W9
–
–
SD1_D4
7
I
Sigma-Delta 1 channel 4 data input
GPIO129
0, 4, 8, 12
I/O
General-purpose input/output 129
T10
–
–
SD1_C4
7
I
Sigma-Delta 1 channel 4 clock input
GPIO130
0, 4, 8, 12
I/O
General-purpose input/output 130
U10
–
–
SD2_D1
7
I
Sigma-Delta 2 channel 1 data input
GPIO131
0, 4, 8, 12
I/O
General-purpose input/output 131
V10
–
–
SD2_C1
7
I
Sigma-Delta 2 channel 1 clock input
GPIO132
0, 4, 8, 12
I/O
General-purpose input/output 132
W18
–
–
SD2_D2
7
I
Sigma-Delta 2 channel 2 data input
GPIO133/AUXCLKIN
0, 4, 8, 12
I/O
General-purpose input/output 133. The AUXCLKIN
function of this GPIO pin could be used to provide a
single-ended 3.3-V level clock signal to the Auxiliary
Phase-Locked Loop (AUXPLL), whose output is used for
G18
118
–
the USB module. The AUXCLKIN clock may also be
used for the CAN module.
SD2_C2
7
I
Sigma-Delta 2 channel 2 clock input
GPIO134
0, 4, 8, 12
I/O
General-purpose input/output 134
V18
–
–
SD2_D3
7
I
Sigma-Delta 2 channel 3 data input
GPIO135
0, 4, 8, 12
I/O
General-purpose input/output 135
SCITXDA
6
U18
–
–
O
SCI-A transmit data
SD2_C3
7
I
Sigma-Delta 2 channel 3 clock input
GPIO136
0, 4, 8, 12
I/O
General-purpose input/output 136
SCIRXDA
6
T17
–
–
I
SCI-A receive data
SD2_D4
7
I
Sigma-Delta 2 channel 4 data input
Copyright © 2014–2015, Texas Instruments Incorporated
Terminal Configuration and Functions
33
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