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