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TMS320C6747 pcb layout for ZKB-package

Vitalii Kukush
Intellectual 830 points
Other Parts Discussed in Thread: TMS320C6747

Dear e2e!

My question is about pin assignments of the TMS320C6747 DSP ZKB (BGA) package for the next ports:
1) UART0_RXD/I2C0_SDA/TM64P0_IN12/GP5[8]/BOOT[8];
2) UART0_TXD/I2C0_SCL/TM64P0_OUT12/GP5[9]/BOOT[9];
3) EMB_D[14]/GP6[14];
4) ACLKX0/ECAP0/APWM0/GP2[12].

The figure 2-3 of the TMS320C6747 DSP datasheet (SPRS377F –SEPTEMBER 2008–REVISED JUNE 2014) gives next pin assignment:
1) UART0_RXD/I2C0_SDA/TM64P0_IN12/GP5[8]/BOOT[8]     -> R3    ;
2) UART0_TXD/I2C0_SCL/TM64P0_OUT12/GP5[9]/BOOT[9]  -> P3;
3) EMB_D[14]/GP6[14]                                                               -> E16;
4) ACLKX0/ECAP0/APWM0/GP2[12]                                         -> C5.

The table 2-5 of the same document gives the another variant of pin assignment:
1) UART0_RXD/I2C0_SDA/TM64P0_IN12/GP5[8]/BOOT[8]     -> P3;
2) UART0_TXD/I2C0_SCL/TM64P0_OUT12/GP5[9]/BOOT[9]  -> R3  ;
3) EMB_D[14]/GP6[14]                                                               -> E`6;
4) ACLKX0/ECAP0/APWM0/GP2[12]                                         -> CD.

Please help, where is the truth?
With many thanks in advance,
Vitalii

PS: I hope, SPRS377F is the latest revision of TMS320C6747 DSP datasheet.
I have just downloaded it from ti.com

  • 0
    TI__Mastermind 43660 points

    Hello Vitalii,

    The TMS320C6747 data manual SPRS377F does not have figure 2.3 and table 2.5. The package diagram is given as figure 3.3 and GPIO terminal function is given as table 3.25.

    The pin assignment given in figure 3.3 is correct and there are some typo in pin assignment given in table 3.25. The below mentioned pin assignment are correct per package diagram.

    1) UART0_RXD/I2C0_SDA/TM64P0_IN12/GP5[8]/BOOT[8]     -> R3
    2) UART0_TXD/I2C0_SCL/TM64P0_OUT12/GP5[9]/BOOT[9]  -> P3
    3) EMB_D[14]/GP6[14]                                                               -> E16
    4) ACLKX0/ECAP0/APWM0/GP2[12]                                         -> C5

    Regards,

    Senthil

  • 0 in reply to Senthilkumar Srinivasan
    Intellectual 830 points

    Hello Senthil!

    Thank You very much for reply!
    Thank You for verifying the correctness of the pin assignment given in figure 3.3 (The TMS320C6747 data manual SPRS377F –SEPTEMBER 2008–REVISED JUNE 2014).

    Yes, I'm sorry, figure 2.3 and table 2.5 are the same figures and tables, but in revision E of the data manual (SPRS377E).

    Thank You very much!
    Vitalii