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Scale Sheet
Size FCSM No. DWG No. Rev
6 of 17
C 1
TEXAS INSTRUMENTS, INC.
12500 TI BLVD
DALLAS, TEXAS 75243
DM642 CLOCKS & RESET
C5
0.1uF
I
1
O
3
GND
2
E1
EXCCET103U
+
C169
10uF
R81
2.2k
R80
2.2k
R12
NO POP
R7
NO POP
R39
10k
R8
NO POP
R31
1k
1
2
3
4 5
6
7
8
RN1
RPACK4-10k
C6
0.1uF
R30
1k
L2
BLM21P221SN
C168
NO POP
C166
1000pF
R61
33
C3
0.1uF
R10
NO POP
R9
NO POP
R11
NO POP
R40
10k
VCC
4
OUT
3
GND
2
EN
1
Y2
50.00MHz
VCC
4
OUT
3
GND
2
EN
1
Y3
25.00MHz
R3
33
C4
0.1uF
L3
BLM21P221SN
C167
1000pF
R13 NO POP
Clocks / Interrupts / Timers / IIC
RESERVED
CLKIN
AC2
CLKINF
AB3
CLKMODE0
AA2
CLKMODE1
AE4
CLKOUTT
AD3
CLKOUTF
AC4
GP01 / CLKOUT4
D6
GP02 / CLKOUT6
C6
EXTINT4 / GP04
F4
EXTINT5 / GP05
F3
EXTINT6 / GP06
F2
EXTINT7 / GP07
E1
GP00 / DM641SEL
M5
GP03 / PCIEEAI
L5
NMI
B4
RESET
P4
AMUX1
AA3
PLL_LD
AF3
PLL_VDD
V6
TSTSTRB
E14
TINP0
A4
EMACEN / TOUT0
C5
TINP1
A5
LENDIAN / TOUT1
B5
SCL0
E4
SDA0
D3
ECLKIN
H25
U25E
TMX320DM642CGDK
R2 33
VDD
2
X2
8
REF
4
S0
6
S1
7
CLK
5
X1/ICLK
1
GND
3
U3 ICS512
D3.3V
D3.3V
D3.3V
D3.3V
D3.3V
D3.3V
D3.3V
D3.3V
/RESET
SCL
SDA
3X
5.33X
8X
2.5X
3.33X
6X
2X
4X
5X
S1 S0
00
0
0
0
0
1
1
1
1
1
OPEN
OPEN
OPEN OPEN
OPEN
OPEN
1
100 MHz
125 MHz
133.25 MHz
62.5 MHz
50 MHz
83.25 MHz
150 MHz
75 MHz
200 MHz
MULTIPLY
Place all PLL external components as close to the DSP. All PLL external components must be on a single side of the board.
OUTPUT
TP
1
TP3
TP
TP
1
TP10
TP
DSP_PLL_VDD
DSP_PLL_VDD
R16
NO POP
R32 1k
R34
1k
R15 NO POP
D3.3V
LITTLE ENDIAN MODE (DEFAULT)
BIG ENDIAN MODE
R15/R34
0
1
ENDIAN MODE CONFIGURATION
MODE SELECTED
R16/R32
0
1
PCI EEPROM AUTO-INIT CONFIGURATION
MODE SELECTED
PCI EEPROM DISABLED(DEFAULT)
PCI EEPROM ENABLED; PCIEN=1
PCI_EEAI
PCI_EEAI
LENDIAN_MODE
LENDIAN_MODE
R14 NO POP
EMAC_ENABLE
EMAC_ENABLE
R33
1k
TP
1
TP4
TP
TP
1
TP5
TP
TP
1
TP6
TP
TP
1
TP7
TP
DSP_CLKIN
DSP_ECLKIN
TP
1
TP8
TP
TP
1
TP9
TP
DSP_ECLKIN
R71 360
R70 360
R72
150
D3.3V
A
2
K
1
1
BLUE_LED
R73
150
A
2
K
1
2
BLUE_LED
R74
150
A
2
K
1
3
BLUE_LED
R75
150
A
2
K
1
4
BLUE_LED
GP04
GP05
GP06
GP07
GP04
GP05
GP06
GP07
ETHERNET MAC DISABLED
ETHERNET MAC ENABLED
R14/R33
0
1
EMAC MODE CONFIGURATION
MODE SELECTED