www.ti.com
2.7
Terminal Functions
SM320C6455-EP
FIXED-POINT DIGITAL SIGNAL PROCESSOR
SPRS462B – SEPTEMBER 2007 – REVISED JANUARY 2008
The terminal functions table (
Table 2-3
) identifies the external signal names, the associated pin (ball)
numbers along with the mechanical package designator, the pin type (I, O/Z, or I/O/Z), whether the pin
has any internal pullup/pulldown resistors, and a functional pin description. For more detailed information
on device configuration, peripheral selection, multiplexed/shared pins, and pullup/pulldown resistors, see
Section 3
,
Device Configuration
.
Table 2-3. Terminal Functions
SIGNAL
TYPE
(1)
IPD/IPU
(2)
DESCRIPTION
NAME
NO.
CLOCK/PLL CONFIGURATIONS
CLKIN1
N28
I
IPD
Clock Input for PLL1.
CLKIN2
G3
I
IPD
Clock Input for PLL2.
PLLV1
T29
A
1.8-V I/O supply voltage for PLL1
PLLV2
A5
A
1.8-V I/O supply voltage for PLL2
SYSCLK4 is the clock output at 1/8 of the device speed (
O/Z
) or this pin can be
SYSCLK4/GP[1]
(3)
AJ13
I/O/Z
IPD
programmed as the GP1 pin (
I/O/Z
) [default].
JTAG EMULATION
TMS
AJ10
I
IPU
JTAG test-port mode select
TDO
AH8
O/Z
IPU
JTAG test-port data out
TDI
AH9
I
IPU
JTAG test-port data in
TCK
AJ9
I
IPU
JTAG test-port clock
JTAG test-port reset. For IEEE 1149.1 JTAG compatibility, see the IEEE
TRST
AH7
I
IPD
1149.1 JTAG compatibility statement portion of this document.
EMU0
(4)
AF7
I/O/Z
IPU
Emulation pin 0
EMU1
(4)
AE11
I/O/Z
IPU
Emulation pin 1
EMU2
AG9
I/O/Z
IPU
Emulation pin 2
EMU3
AF10
I/O/Z
IPU
Emulation pin 3
EMU4
AF9
I/O/Z
IPU
Emulation pin 4
EMU5
AE12
I/O/Z
IPU
Emulation pin 5
EMU6
AG8
I/O/Z
IPU
Emulation pin 6
EMU7
AF12
I/O/Z
IPU
Emulation pin 7
EMU8
AF11
I/O/Z
IPU
Emulation pin 8
EMU9
AH13
I/O/Z
IPU
Emulation pin 9
EMU10
AD10
I/O/Z
IPU
Emulation pin 10
EMU11
AD12
I/O/Z
IPU
Emulation pin 11
EMU12
AE10
I/O/Z
IPU
Emulation pin 12
EMU13
AD8
I/O/Z
IPU
Emulation pin 13
EMU14
AF13
I/O/Z
IPU
Emulation pin 14
EMU15
AE9
I/O/Z
IPU
Emulation pin 15
EMU16
AH12
I/O/Z
IPU
Emulation pin 16
EMU17
AH10
I/O/Z
IPU
Emulation pin 17
EMU18
AE13
I/O/Z
IPU
Emulation pin 18
(1)
I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal
(2)
IPD = Internal pulldown, IPU = Internal pullup. For most systems, a 1-k
Ω
resistor can be used to oppose the IPU/IPD. For more detailed
information on pullup/pulldown resistors and situations where external pullup/pulldown resistors are required, see
Section 3.7
,
Pullup/Pulldown Resistors
.
(3)
These pins are multiplexed pins. For more details, see
Section 3
,
Device Configuration
.
(4)
The C6455 DSP does not require external pulldown resistors on the EMU0 and EMU1 pins for normal or boundary-scan operation.
Device Overview
30
Submit Documentation Feedback
Содержание SM320C6455-EP
Страница 1: ...SM320C6455 EP FIXED POINT DIGITAL SIGNAL PROCESSOR Data Manual JANUARY 2008 SPRS462B...
Страница 253: ......