C6416 datasheet(53/134 Pages) TI1

53 / 134 page

SMJ320C6414, SMJ320C6415, SMJ320C6416

FIXEDPOINT DIGITAL SIGNAL PROCESSORS

SGUS050A − JANUARY 2004 − REVISED MARCH 2004

POST OFFICE BOX 1443

• HOUSTON, TEXAS 77251−1443

Terminal Functions (Continued)

SIGNAL

TYPE†

IPD/

‡

DESCRIPTION

NAME

NO.

TYPE†

IPD/

IPU‡

DESCRIPTION

UTOPIA SLAVE (ATM CONTROLLER) − TRANSMIT INTERFACE (CONTINUED)

UXDATA7Y

W10

UXDATA6Y

T11

UXDATA5Y

8-bit Transmit Data Bus

Using the Transmit Data Bus, the UTOPIA Slave (on the rising edge of the UXCLK) transmits

UXDATA4Y

AB6

O/Z

8-bit Transmit Data Bus

Using the Transmit Data Bus, the UTOPIA Slave (on the rising edge of the UXCLK) transmits

the 8-bit ATM cells to the Master ATM Controller.

UXDATA3Y

V10

O/Z

the 8-bit ATM cells to the Master ATM Controller.

When the UTOPIA peripheral is disabled (UTOPIA_EN [BEA11 pin] = 0), these pins are tied-

UXDATA2Y

U10

When the UTOPIA peripheral is disabled (UTOPIA_EN [BEA11 pin] = 0), these pins are tied-

off.

UXDATA1Y

AA7

off.

UXDATA0Y

UTOPIA SLAVE (ATM CONTROLLER) − RECEIVE INTERFACE

URCLKY

U12

Source clock for UTOPIA receive driven by Master ATM Controller.

When the UTOPIA peripheral is disabled (UTOPIA_EN [BEA11 pin] = 0), this pin is tied-off.

URCLAVY

AA14

O/Z

Receive cell available status output signal from UTOPIA Slave.

indicates NO space is available to receive a cell from Master ATM Controller

indicates space is available to receive a cell from Master ATM Controller

When the UTOPIA peripheral is disabled (UTOPIA_EN [BEA11 pin] = 0), this pin is tied-off.

URENBY

AB16

◊

UTOPIA receive interface enable input signal. Asserted by the Master ATM Controller to indi-

cate to the UTOPIA Slave to sample the Receive Data Bus (URDATA[7:0]) and URSOC signal

in the next clock cycle or thereafter.

When the UTOPIA peripheral is disabled (UTOPIA_EN [BEA11 pin] = 0), this pin is tied-off.

URSOCY

W13

Receive Start-of-Cell signal. This signal is output by the Master ATM Controller to indicate to

the UTOPIA Slave that the first valid byte of the cell is available to sample on the 8-bit Receive

Data Bus (URDATA[7:0]).

When the UTOPIA peripheral is disabled (UTOPIA_EN [BEA11 pin] = 0), this pin is tied-off.

CLKX1/

URADDR4§

T12

I/O/Z

◊

McBSP1 [default] or UTOPIA receive address pins

As UTOPIA receive address pins URADDR[4:0] (I), UTOPIA_EN (BEA11 pin) = 1:

CLKS1/

URADDR3§

◊

As UTOPIA receive address pins URADDR[4:0] (I), UTOPIA_EN (BEA11 pin) = 1:

• 5-bit Slave receive address input pins driven by the Master ATM Controller to identify and

select one of the Slave devices (up to 31 possible) in the ATM System.

CLKR1/

URADDR2§

AB7

I/O/Z

◊

select one of the Slave devices (up to 31 possible) in the ATM System.

• URADDR1 and URADDR0 pins are tied off when the UTOPIA peripheral is disabled

[UTOPIA_EN (BEA11 pin) = 0]

URADDR1Y

U11

◊

[UTOPIA_EN (BEA11 pin) = 0]

For the McBSP1 pin functions (UTOPIA_EN (BEA11 pin) = 0 [default]), see the MULTICHAN-

URADDR0Y

AA9

◊

For the McBSP1 pin functions (UTOPIA_EN (BEA11 pin) = 0 [default]), see the MULTICHAN-

NEL BUFFERED SERIAL PORT 1 (McBSP1) section of this table.

† I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground

‡ IPD = Internal pulldown, IPU = Internal pullup. (These IPD/IPU signal pins feature a 30-kΩ IPD or IPU resistor. To pull up a signal to the opposite

supply rail, a 1-k

Ω resistor should be used.)

§ These pins are multiplexed pins. For more details, see the Device Configurations section of this data sheet.

hExternal pulldowns required: If UTOPIA is selected (BEA11 = 1) and these pins are connected to other devices, then a 10-kΩ resistor must be

used to externally pull down each of these pins. If these pins are “no connects”, then only UXCLK and URCLK need to be pulled down and other

pulldowns are not necessary.

◊ External pullups required: If UTOPIA is selected (BEA11 = 1) and these pins are connected to other devices, then a 10-kΩ resistor must be used

to externally pull up each of these pins. If these pins are “no connects”, then the pullups are not necessary.

ΨThe C6414 device does not support the UTOPIA peripheral; therefore, these standalone UTOPIA pins are Reserved (leave unconnected, do

not connect to power or ground) with the exception of UXCLK and URCLK which should be connected to a 10-k

Ω pulldown resistor (see the

square [

h] footnote).

C6416 Datasheet(PDF) 53 Page - Texas Instruments

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