Terminal Functions - Texas Instruments TMS320C6474 Manual

TMS320C6474
SPRS552F – OCTOBER 2008 – REVISED JULY 2010
2.7

Terminal Functions

The terminal functions table
I/O/Z), whether the pin has any internal pullup/pulldown resistors, and the signal function description.
SIGNAL
NAME NO.
AIFRXN0 AF22
AIFRXP0 AF21
AIFRXN1 AG20
AIFRXP1 AG21
AIFRXN2 AG18
AIFRXP2 AG17
AIFRXN3 AE17
AIFRXP3 AE18
AIFRXN4 AE14
AIFRXP4 AE13
AIFRXN5 AF12
AIFRXP5 AF13
AIFTXN0 AE21
AIFTXP0 AE22
AIFTXN1 AD21
AIFTXP1 AD20
AIFTXN2 AF16
AIFTXP2 AF17
AIFTXN3 AD17
AIFTXP3 AD16
AIFTXN4 AG13
AIFTXP4 AG14
AIFTXN5 AD13
AIFTXP5 AD12
NMI0 J4
NMI1 J2
NMI2 J1
XWRST AD5
RESETSTAT AF4
POR AE5
SYSCLKP AE9
SYSCLKN AE10
ALTCORECLKN AF10
ALTCORECLKP AF9
DDRREFCLKN AD23
DDRREFCLKP AD24
SYSCLKOUT AD6
(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 mA.
26 Device Overview
(Table 2-5) identifies the external signal names, the pin type (I, O, O/Z, or
Table 2-5. Terminal Functions
(1) (2)
TYPE IPD/IPU
ANTENNA INTERFACE
I
I
I
I
I
I
Antenna Interface Receive Data (6 links)
I
I
I
I
I
I
O
O
O
O
O
O
Antenna Interface Transmit Data (6 links)
O
O
O
O
O
O
CLOCK/RESETS
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
I IPD
2, respectively. NMIs are edge-driven (rising edge). Any noise on the NMI pin
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.
I Warm Reset
O Reset Status Output
I Power-on Reset
I
System Clock Input to Antenna Interface and main PLL (Main PLL optional vs
ALTCORECLK)
I
I
Alternate Core Clock Input to main PLL (vs SYSCLK)
I
I
DDR Reference Clock Input to DDR PLL
I
System Clock Output to be used as a general purpose output clock for debug
O/Z IPD
purposes
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