C6416 datasheet(54/134 Pages) TI1

54 / 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) − RECEIVE INTERFACE (CONTINUED)

URDATA7Y

AA10

URDATA6Y

V12

URDATA5Y

W12

8-bit Receive Data Bus.

Using the Receive Data Bus, the UTOPIA Slave (on the rising edge of the URCLK) can receive

URDATA4Y

W11

8-bit Receive Data Bus.

Using the Receive Data Bus, the UTOPIA Slave (on the rising edge of the URCLK) can receive

the 8-bit ATM cell data from the Master ATM Controller.

URDATA3Y

Y11

the 8-bit ATM cell data from the Master ATM Controller.

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

URDATA2Y

AB9

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

off.

URDATA1Y

Y13

off.

URDATA0Y

AA12

RESERVED FOR TEST

RSV

Reserved (leave unconnected, do not connect to power or ground)

RSV

Reserved (leave unconnected, do not connect to power or ground)

† 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.)

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.

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).

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