Table 17-1. Signals by Pin Number (continued)
DescriptionBuffer Type
a
Pin TypePin NamePin Number
GPIO port E bit 3.TTLI/OPE375
SSI module 1 transmit.TTLOSSI1Tx
CPU Mode bit 1. Input must be set to logic 0 (grounded); other
encodings reserved.
TTLICMOD176
GPIO port C bit 3.TTLI/OPC377
JTAG TDO and SWO.TTLOSWO
JTAG TDO and SWO.TTLOTDO
GPIO port C bit 2.TTLI/OPC278
JTAG TDI.TTLITDI
GPIO port C bit 1.TTLI/OPC179
JTAG TMS and SWDIO.TTLI/OSWDIO
JTAG TMS and SWDIO.TTLI/OTMS
GPIO port C bit 0.TTLI/OPC080
JTAG/SWD CLK.TTLISWCLK
JTAG/SWD CLK.TTLITCK
Positive supply for I/O and some logic.Power-VDD81
Ground reference for logic and I/O pins.Power-GND82
VCC of the Ethernet PHY.Power-VCCPHY83
VCC of the Ethernet PHY.Power-VCCPHY84
GND of the Ethernet PHY.Power-GNDPHY85
GND of the Ethernet PHY.Power-GNDPHY86
Ground reference for logic and I/O pins.Power-GND87
Positive supply for most of the logic function, including the
processor core and most peripherals.
Power-VDD2588
GPIO port B bit 7.TTLI/OPB789
JTAG TRST.TTLITRST
GPIO port B bit 6.TTLI/OPB690
GPIO port B bit 5.TTLI/OPB591
GPIO port B bit 4.TTLI/OPB492
Positive supply for I/O and some logic.Power-VDD93
Ground reference for logic and I/O pins.Power-GND94
No connect. Leave the pin electrically unconnected/isolated.--NC95
No connect. Leave the pin electrically unconnected/isolated.--NC96
The ground reference for the analog circuits ( etc.). These are
separated from GND to minimize the electrical noise contained on
VDD from affecting the analog functions.
Power-GNDA97
The positive supply (3.3 V) for the analog circuits (ADC, 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.
Power-VDDA98
No connect. Leave the pin electrically unconnected/isolated.--NC99
No connect. Leave the pin electrically unconnected/isolated.--NC100
a. The TTL designation indicates the pin has TTL-compatible voltage levels.
June 22, 2010464
Texas Instruments-Production Data
Signal Tables
