TNETV2665FIDZWT7 datasheet(51/249 Pages) TI1

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TMS320C6424

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SPRS347D – MARCH 2007 – REVISED DECEMBER 2009

Table 2-18. Host-Port Interface Terminal Functions (continued)

SIGNAL

TYPE(1)

OTHER(2) (3)

DESCRIPTION

ZWT

ZDU

NAME

NO.

This pin is multiplexed between HPI, EMAC (MII), PCI, and

HDS2/MRXD0/

IPU

I/O/Z

GPIO.

AD9/GP[78]

DVDD33

In HPI mode, this pin is host data strobe input 2 HDS2 (I).

This pin is multiplexed between HPI, EMAC (MII), PCI, and

HDS1/MRXD1/

IPU

I/O/Z

GPIO.

AD7/GP[79]

DVDD33

In HPI mode, this pin is host data strobe input 1 HDS1 (I).

This pin is multiplexed between HPI, EMAC (MII), PCI, and

HRDY/MRXD2/

IPU

GPIO.

I/O/Z

PCBE0/GP[80]

DVDD33

In HPI mode, this pin is host ready output from DSP to host

(O/Z).

This pin is multiplexed between HPI, MDIO, PCI, and GPIO.

HCS/MDCLK/

IPU

I/O/Z

In HPI mode, this pin is HPI active low chip select input HCS

AD5/GP[81]

DVDD33

(I).

This pin is multiplexed between HPI, EMAC (MII), PCI, and

HINT/MRXD3/

IPU

I/O/Z

GPIO.

AD6/GP[82]

DVDD33

In HPI mode, this pin is host interrupt output HINT (O/Z).

This pin is multiplexed between HPI, MDIO, PCI, and GPIO.

HAS/MDIO/

IPU

In HPI mode, this pin is host address strobe HAS (I).

I/O/Z

AD3/GP[83]

DVDD33

For proper HPI operation, if this pin is routed out, it must be

pulled up via an external resistor.

Table 2-19. I2C Terminal Functions

SIGNAL

TYPE(1)

OTHER(2) (3)

DESCRIPTION

ZWT

ZDU

NAME

NO.

I2C

For I2C, this pin is I2C clock. In I2C master mode, this pin is an

output. In I2C slave mode, this pin is an input.

SCL

I/O/Z

DVDD33

When the I2C module is used, for proper device operation, this pin

must be pulled up via an external resistor.

For I2C, this pin is the I2C bi-directional data signal.

SDA

I/O/Z

DVDD33

When the I2C module is used, for proper device operation, this pin

must be pulled up via an external resistor.

(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 3.9.1 , Pullup/Pulldown Resistors.

(3)

Specifies the operating I/O supply voltage for each signal

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