SM320C6414-EP_16 Datasheet, PDF (30/93 Pages) Texas Instruments – FIXED-POINT DIGITAL SIGNAL PROCESSORS

SM320C6414-EP, SM320C6415-EP, SM320C6416-EP
FIXED-POINT DIGITAL SIGNAL PROCESSORS
SGUS043D – MAY 2003 – REVISED SEPTEMBER 2008
2 Device Configurations
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The C6414, C6415, and C6416 peripheral selections and other device configurations are determined by
external pullup/pulldown resistors on the following pins (all of which are latched during device reset):
• Peripherals selection (C6415 and C6416 devices)
– BEA11 (UTOPIA_EN)
– PCI_EN (for C6415 or C6416, see Table 28 footnotes)
– MCBSP2_EN (for C6414 or C6416, see Table 28 footnotes)
The C6414 device does not support the PCI and UTOPIA peripherals; for proper operation of the
C6414 device, do not oppose the internal pulldowns (IPDs) on the BEA11, PCI_EN, and
MCBSP2_EN pins. (For IPUs/IPDs on pins, see the Terminal Functions table of this data manual.)
• Other device configurations (C64x)
– BEA[20:13, 7]
– HD5
2.1 Peripherals Selection
Some C6415/C6416 peripherals share the same pins (internally multiplexed) and are mutually exclusive
(i.e., HPI, GPIO pins GP[15:9], PCI and its internal EEPROM, McBSP1, McBSP2, and UTOPIA). The
VCP/TCP coprocessors (C6416 only) and other C64x peripherals (i.e., the timers, McBSP0, and the
GP[8:0] pins) are always available.
• UTOPIA and McBSP1 peripherals
The UTOPIA_EN pin (BEA11) is latched at reset. For C6415 and C6416 devices, this pin selects
whether the UTOPIA peripheral or McBSP1 peripheral is functionally enabled (see Table 2-1).
The C6414 device does not support the UTOPIA peripheral; for proper device operation, do not
oppose the internal pulldown (IPD) on the BEA11 pin.
Table 2-1. UTOPIA_EN Peripheral Selection (McBSP1 and UTOPIA) (C6415/C6416 Only)
PERIPHERAL SELECTION
UTOPIA_EN
(BEA11) PIN [D16]
PERIPHERALS SELECTED
UTOPIA
McBSP1
DESCRIPTION
McBSP1 is enabled and UTOPIA is disabled
(default).
0
√
This means all multiplexed McBSP1/UTOPIA pins
function as McBSP1 and all other stand alone
UTOPIA pins are tied off (Hi-Z).
1
√
UTOPIA is enabled and McBSP1 is disabled.
This means all multiplexed McBSP1/UTOPIA pins
now function as UTOPIA and all other stand alone
McBSP1 pins are tied off (Hi-Z).
• HPI, GP[15:9], PCI, EEPROM (internal to PCI), and McBSP2 peripherals
The PCI_EN and MCBSP2_EN pins are latched at reset. They determine specific peripheral selection
for the C6415 and C6416 devices, summarized in Table 2-2.
The C6414 device does not support the PCI peripheral; for proper device operation, do not oppose the
internal pulldowns (IPDs) on the PCI_EN and MCBSP2_EN pins.
Table 2-2. PCI_EN and MCBSP2_EN Peripheral Selection (HPI, GP[15:9], PCI, and McBSP2)
PERIPHERAL SELECTION⁽¹⁾
PERIPHERALS SELECTED
PCI_EN
PIN [AA4]
MCBSP2_EN
PIN [AF3]
HPI
GP[15:9]
PCI
EEPROM
(INTERNAL TO PCI)
McBSP2
0
0
√
√
√
0
1
√
√
√
(1) The PCI_EN pin must be driven valid at all times and the user must not switch values throughout device operation.
The MCBSP2_EN pin must be driven valid at all times and the user can switch values throughout device operation.
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Device Configurations
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