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TMS320C6474
SPRS552F – OCTOBER 2008 – REVISED JULY 2010
www.ti.com
2.7
Terminal Functions
The terminal functions table (
Table 2-5
) identifies the external signal names, the pin type (I, O, O/Z, or
I/O/Z), whether the pin has any internal pullup/pulldown resistors, and the signal function description.
Table 2-5. Terminal Functions
SIGNAL
TYPE
(1)
IPD/IPU
(2)
SIGNAL DESCRIPTION
NAME
NO.
ANTENNA INTERFACE
AIFRXN0
AF22
I
AIFRXP0
AF21
I
AIFRXN1
AG20
I
AIFRXP1
AG21
I
AIFRXN2
AG18
I
AIFRXP2
AG17
I
Antenna Interface Receive Data (6 links)
AIFRXN3
AE17
I
AIFRXP3
AE18
I
AIFRXN4
AE14
I
AIFRXP4
AE13
I
AIFRXN5
AF12
I
AIFRXP5
AF13
I
AIFTXN0
AE21
O
AIFTXP0
AE22
O
AIFTXN1
AD21
O
AIFTXP1
AD20
O
AIFTXN2
AF16
O
AIFTXP2
AF17
O
Antenna Interface Transmit Data (6 links)
AIFTXN3
AD17
O
AIFTXP3
AD16
O
AIFTXN4
AG13
O
AIFTXP4
AG14
O
AIFTXN5
AD13
O
AIFTXP5
AD12
O
CLOCK/RESETS
NMI0
J4
I
IPD
Non-maskable interrupts. NMI0, NMI1, and NMI2 pins are mapped to C64x+
Megamodule Core 0, C64x+ Megamodule Core 1, and C64x+ Megamodule Core
NMI1
J2
I
IPD
2, respectively. NMIs are edge-driven (rising edge). Any noise on the NMI pin
NMI2
J1
I
IPD
may trigger an NMI interrupt; therefore, if the NMI pin is not used, it is
recommended that the NMI pin be grounded rather than relying on the IPD.
XWRST
AD5
I
Warm Reset
RESETSTAT
AF4
O
Reset Status Output
POR
AE5
I
Power-on Reset
SYSCLKP
AE9
I
System Clock Input to Antenna Interface and main PLL (Main PLL optional vs
ALTCORECLK)
SYSCLKN
AE10
I
ALTCORECLKN
AF10
I
Alternate Core Clock Input to main PLL (vs SYSCLK)
ALTCORECLKP
AF9
I
DDRREFCLKN
AD23
I
DDR Reference Clock Input to DDR PLL
DDRREFCLKP
AD24
I
System Clock Output to be used as a general purpose output clock for debug
SYSCLKOUT
AD6
O/Z
IPD
purposes
(1)
I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal
(2)
IPD = internal pulldown, IPU = internal pullup. All internal pullups and pulldowns are 100
m
A.
26
Device Overview
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