TMS320C6421 datasheet(33/59 Pages) TI

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TMS320C6421

Fixed-Point Digital Signal Processor

SPRS346A – JANUARY 2007 – REVISED MARCH 2007

Table 2-16. VLYNQ Terminal Functions

SIGNAL

TYPE(1)

OTHER(2)(3)

DESCRIPTION

ZWT

ZDU

NAME

NO.

VLYNQ

VLYNQ_CLOCK/

IPU

This pin is multiplexed between VLYNQ and GPIO.

I/O/Z

GP[57]

DVDD33

For VLYNQ, it is the clock VLYNQ_CLOCK (I/O/Z).

This pin is multiplexed between HPI, VLYNQ, and GPIO.

HD0/VLYNQ_SCRUN/

IPU

I/O/Z

For VLYNQ, it is the Serial Clock run request VLYNQ_SCRUN

GP[58]

DVDD33

(I/O/Z).

HD8/VLYNQ_TXD3/

IPD

This pin is multiplexed between HPI, VLYNQ, and GPIO.

I/O/Z

GP[66]

DVDD33

For VLYNQ, it is transmit bus bit 3 output VLYNQ_TXD3.

HD7/VLYNQ_TXD2/

IPD

This pin is multiplexed between HPI, VLYNQ, and GPIO.

I/O/Z

GP[65]

DVDD33

For VLYNQ, it is transmit bus bit 2 output VLYNQ_TXD2.

HD6/VLYNQ_TXD1/

IPD

This pin is multiplexed between HPI, VLYNQ, and GPIO.

I/O/Z

GP[64]

DVDD33

For VLYNQ, it is transmit bus bit 1 output VLYNQ_TXD1.

HD5/VLYNQ_TXD0/

IPD

This pin is multiplexed between HPI, VLYNQ, and GPIO.

I/O/Z

GP[63]

DVDD33

For VLYNQ, it is transmit bus bit 0 output VLYNQ_TXD0.

HD4/VLYNQ_RXD3/

IPD

This pin is multiplexed between HPI, VLYNQ, and GPIO.

I/O/Z

GP[62]

DVDD33

For VLYNQ, it is receive bus bit 3 input VLYNQ_RXD3.

HD3/VLYNQ_RXD2/

IPD

This pin is multiplexed between HPI, VLYNQ, and GPIO.

I/O/Z

GP[61]

DVDD33

For VLYNQ, it is receive bus bit 2 input VLYNQ_RXD2.

HD2/VLYNQ_RXD1/

IPD

This pin is multiplexed between HPI, VLYNQ, and GPIO.

I/O/Z

GP[60]

DVDD33

For VLYNQ, it is receive bus bit 1 input VLYNQ_RXD1.

HD1/VLYNQ_RXD0/

IPD

This pin is multiplexed between HPI, VLYNQ, and GPIO.

I/O/Z

GP[59]

DVDD33

For VLYNQ, it is receive bus bit 0 input VLYNQ_RXD0.

(1)

I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal

(2)

IPD = Internal pulldown, IPU = Internal pullup. For more detailed information on pullup/pulldown resistors and situations where external

pullup/pulldown resistors are required, see Section 3.2.1, Pullup/Pulldown Resistors.

(3)

Specifies the operating I/O supply voltage for each signal

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