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| 型號(hào)： | TMX320DM6443AZWT |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Digital Media System-on-Chip |
| 中文描述： | 數(shù)字媒體系統(tǒng)片上 |
| 文件頁(yè)數(shù)： | 28/221頁(yè) |
| 文件大小： | 1582K |
| 代理商： | TMX320DM6443AZWT |
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www.ti.com
TMS320DM6443
Digital Media System-on-Chip
SPRS282E–DECEMBER 2005–REVISED MARCH 2007
Table 2-6. Oscillator/PLL Terminal Functions
SIGNAL
NAME
TYPE
(1)
OTHER
(2)
DESCRIPTION
NO.
OSCILLATOR, PLL
Crystal input MXI for MX oscillator (system oscillator, typically 27 MHz). If a crystal
input
is not
used, but instead a physical clock-in source is supplied, this is the
external oscillator clock input.
Crystal output for MX oscillator. If a crystal input
is not
used, but instead a physical
clock-in source is supplied, MXO should be left as a No Connect.
1.8-V power supply for MX oscillator. If a crystal input
is not
used, but instead a
physical clock-in source is supplied, MXV
DD
should still be connected to the 1.8-V
power supply.
Ground for MX oscillator. If a crystal input
is not
used, but instead a physical
clock-in source is supplied, MXV
SS
should still be connected to ground.
Crystal input for M24 oscillator (24 MHz for USB). If a crystal input
is not
used, but
instead a physical clock-in source is supplied, this is the external oscillator clock
input. When the USB peripheral
is not
used, M24XI should be left as a No Connect.
Crystal output for M24 oscillator. If a crystal input
is not
used, but instead a physical
clock-in source is supplied, M24XO should be left as a No Connect. When the USB
peripheral
is not
used, M24XO should be left as a No Connect.
1.8-V power supply for M24 oscillator. If a crystal input
is not
used, but instead a
physical clock-in source is supplied, M24V
should still be connected to the 1.8-V
power supply. When the USB peripheral
is not
used, M24V
DD
should be connected
to the 1.8-V power supply.
Ground for M24 oscillator. If a crystal input
is not
used, but instead a physical
clock-in source is supplied, M24V
SS
should still be connected to ground. When the
USB peripheral
is not
used, M24V
SS
should be connected to ground.
1.8-V power supply for PLLs (system).
MXI/CLKIN
L1
I
DV
DD18
MXO
M1
O
DV
DD18
MXV
DD
L5
S
(3)
MXV
SS
L2
GND
(3)
M24XI
F18
I
DV
DD18
M24XO
F19
O
DV
DD18
M24V
DD
F16
S
(3)
M24V
SS
F17
GND
(3)
PLLV
DD18
I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal
Specifies the operating I/O supply voltage for each signal
For more information, see the
Recommended Operating Conditions
table
M2
S
(3)
(1)
(2)
(3)
Table 2-7. Clock Generator Terminal Functions
SIGNAL
NAME
TYPE
(1)
OTHER
(2)
DESCRIPTION
NO.
CLOCK GENERATOR
This pin is multiplexed between the PLL1 clock generator and GPIO.
For the PLL1 clock generator, it is clock output CLK_OUT0. This is configurable for
13.5 MHz or 27 MHz clock outputs.
This pin is multiplexed between the USB clock generator, timer, and GPIO.
For the USB clock generator, it is clock output CLK_OUT1. This is configurable for
12 MHz or 24 MHz clock outputs.
CLK_OUT0/
GPIO48
K1
I/O/Z
DV
DD18
CLK_OUT1/
TIM_IN/
GPIO49
E19
I/O/Z
DV
DD18
(1)
(2)
I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal
Specifies the operating I/O supply voltage for each signal
Table 2-8. RESET and JTAG Terminal Functions
SIGNAL
NAME
TYPE
(1)
OTHER
(2)(3)
DESCRIPTION
NO.
RESET
IPU
DV
DD18
RESET
L4
I
This is the active low global reset input.
JTAG
(1)
(2)
(3)
I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal
IPD = Internal pulldown, IPU = Internal pullup. (To pull up a signal to the opposite supply rail, a 1-k
resistor should be used.)
Specifies the operating I/O supply voltage for each signal
Device Overview
28
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