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TMS320C6748
SPRS590G –JUNE 2009–REVISED JANUARY 2017
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Device Comparison Copyright © 2009–2017, Texas Instruments Incorporated
(1) I = Input, O = Output, I/O = Bidirectional, Z = High impedance, PWR = Supply voltage, GND = Ground, A = Analog signal.
Note: For multiplexed pins where functions have different types (ie., input versus output), the table reflects the pin function direction for
that particular peripheral.
(2) IPD = Internal Pulldown resistor; IPU = Internal Pullup resistor; CP[n] = configurable pull-up/pull-down (where n is the pin group) using
the PUPDENA and PUPDSEL registers in the System Module. For more detailed information on pullup/pulldown resistors and situations
where external pullup/pulldown resistors are required, see the Device Configuration section. For electrical specifications on pullup and
internal pulldown circuits, see the Device Operating Conditions section.
(3) This signal is part of a dual-voltage IO group (A, B or C). These groups can be operated at 3.3V or 1.8V nominal. The three groups can
be operated at independent voltages but all pins withina group will operate at the same voltage. Group A operates at the voltage of
power supply DVDD3318_A. Group B operates at the voltage of power supply DVDD3318_B. Group C operates at the voltage of power
supply DVDD3318_C.
(4) Note: The CLKOUT clock output is provided as PLL observation clock, and is provided for debug purposes only. It may be routed to a
test point, but should never be connected to a load.
3.7.2 High-Frequency Oscillator and PLL
Table 3-6. High-Frequency Oscillator and PLL Terminal Functions
SIGNAL
TYPE
(1)
PULL
(2)
POWER
GROUP
(3)
DESCRIPTION
NAME NO.
CLKOUT / UHPI_HDS2 /
PRU1_R30[13] / GP6[14]
T18 O CP[22] C PLL Observation Clock
(4)
1.2-V OSCILLATOR
OSCIN L19 I — — Oscillator input
OSCOUT K19 O — — Oscillator output
OSCVSS L18 GND — — Oscillator ground
1.2-V PLL0
PLL0_VDDA L15 PWR — — PLL analog V
DD
(1.2-V filtered supply)
PLL0_VSSA M17 GND — — PLL analog V
SS
(for filter)
1.2-V PLL1
PLL1_VDDA N15 PWR — — PLL analog V
DD
(1.2-V filtered supply)
PLL1_VSSA M15 GND — — PLL analog V
SS
(for filter)
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