SMJ320C6414 Datasheet, PDF (54/133 Pages) Texas Instruments – FIXED-POINT DIGITAL SIGNAL PROCESSORS

SMJ320C6414, SMJ320C6415, SMJ320C6416
FIXEDĆPOINT DIGITAL SIGNAL PROCESSORS
SGUS050A − JANUARY 2004 − REVISED MARCH 2004
Terminal Functions (Continued)
SIGNAL
NAME
NO.
TYPE†
IPD/
IPU‡
DESCRIPTION
URDATA7^Y
URDATA6^Y
URDATA5^Y
URDATA4^Y
URDATA3^Y
URDATA2^Y
URDATA1^Y
URDATA0^Y
AA10
V12
W12
W11
Y11
AB9
Y13
AA12
UTOPIA SLAVE (ATM CONTROLLER) − RECEIVE INTERFACE (CONTINUED)
8-bit Receive Data Bus.
Using the Receive Data Bus, the UTOPIA Slave (on the rising edge of the URCLK) can receive
I
h 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-
off.
RESERVED FOR TEST
C4
H5
RSV
H3
N3
Reserved (leave unconnected, do not connect to power or ground)
P3
† _{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-kΩ 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-kΩ pulldown resistor (see the
square [h] footnote).
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