SMJ320C6414 Datasheet, PDF (49/133 Pages) Texas Instruments – FIXED-POINT DIGITAL SIGNAL PROCESSORS

SMJ320C6414, SMJ320C6415, SMJ320C6416
FIXEDĆPOINT DIGITAL SIGNAL PROCESSORS
SGUS050A − JANUARY 2004 − REVISED MARCH 2004
SIGNAL
NAME
NO.
BEA20
E15
BEA19
D17
BEA18
J14
BEA17
E16
BEA16
G15
BEA15
C18
BEA14
F15
BEA13
D16
BEA12
H14
BEA11
F14
BEA10
C17
BEA9
G13
BEA8
G14
BEA7
E14
BEA6
H13
BEA5
C16
BEA4
D15
BEA3
E13
TYPE†
I/O/Z
Terminal Functions (Continued)
IPD/
IPU‡
IPU
IPU
DESCRIPTION
EMIFB (16-BIT) − ADDRESS^||k
EMIFB external address (half-word address) (O/Z)
• Also controls initialization of DSP modes at reset (I) via pullup/pulldown resistors
− Device Endian mode
BEA20: 0 – Big Endian
1 − Little Endian (default mode)
− Boot mode
BEA[19:18]: 00 – No boot
01 − HPI boot
10 − EMIFB 8-bit ROM boot with default timings (default mode)
11 − Reserved
− EMIF clock select
BEA[17:16]: Clock mode select for EMIFA (AECLKIN_SEL[1:0])
00 – AECLKIN (default mode)
01 − CPU/4 Clock Rate
10 − CPU/6 Clock Rate
11 − Reserved
BEA[15:14]: Clock mode select for EMIFB (BECLKIN_SEL[1:0])
00 – BECLKIN (default mode)
01 − CPU/4 Clock Rate
10 − CPU/6 Clock Rate
11 − Reserved
− PCI EEPROM Auto-Initialization (EEAI) [C6415 and C6416 devices only]
BEA13: PCI auto-initialization via external EEPROM
IPD
If the PCI peripheral is disabled (PCI_EN pin = 0), this pin must not be pulled up.
0 − PCI auto-initialization through EEPROM is disabled (default).
1 − PCI auto-initialization through EEPROM is enabled.
− UTOPIA Enable (UTOPIA_EN) [C6415 and C6416 devices only]
BEA11:
UTOPIA peripheral enable (functional)
0 − UTOPIA disabled (McBSP1 enabled) [default]
1 − UTOPIA enabled (McBSP1 disabled)
The C6414 device does not support the PCI and UTOPIA peripherals; for proper device
operation, do not oppose the internal pulldowns (IPDs) on the BEA13 and BEA11 pins.
Also for proper C6414 device operation, do not oppose the IPDs on the BEA7, BEA8,
and BEA9 pins.
For proper C6415 device operation, the BEA7 pin must be externally pulled up with a
1-kΩ resistor.
BEA2
D13
For proper C6416 device operation, the BEA8 and BEA9 pins must be externally pulled
up with a 1-kΩ resistor.
BEA1
F13
For more details, see the Device Configurations section of this data sheet.
† _{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.)
|| _{These C64x devices have two EMIFs (64-bit EMIFA and 16-bit EMIFB). The prefix “A” in front of a signal name indicates it is an EMIFA signal}
whereas a prefix “B” in front of a signal name indicates it is an EMIFB signal. Throughout the rest of this document, in generic EMIF areas of
discussion, the prefix “A” or “B” may be omitted from the signal name.
kTo maintain signal integrity for the EMIF signals, serial termination resistors should be inserted into all EMIF output signal lines.
• POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443
49