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AM2432: Unused pin termination

Koichiro Tashiro
Mastermind 22935 points
Part Number: AM2432

Tool/software:

Hi,

My customer is asking what is recommended pin termination for below balls when they are not used.

MCANn_RX
MCAN_TX
RSVDn
PRG0_MDIOO_MDC
PRG0_MDIOO_MDIO
PRG0_PRU0_GPOn
PRG0_PRU1_GPOn
PRG1_MDIOO_MDC
PRG1_MDIOO_MDIO
PRG1_PRU0_GPOn
PRG1_PRU1_GPOn

Schematic Review checklist (SPRACU5C), section 7.6.1.3 says below.


I checked datasheet section 5.4 "Pin Connectivity Requirements" and found above pins are not listed in Table 5-86.
Does it mean they can be left unconnected (no signal traces can be connected to these balls)?

Thanks and regards,
Koichiro Tashiro

  • +1
    TI__Guru**** 189689 points

    Hello Koichiro Tashiro,

    Thank you for the query.

    Koichiro Tashiro said:
    I checked datasheet section 5.4 "Pin Connectivity Requirements" and found above pins are not listed in Table 5-86.
    Does it mean they can be left unconnected (no signal traces can be connected to these balls)?

    Please refer to the Pin attributes table columns

    BALL
    STATE
    DURING
    RESET
    (RX/TX/PULL) [7]


    BALL
    STATE
    AFTER
    RESET
    (RX/TX/PULL) [8]

    Other than the RSVD pins, for the other pins listed please note that the IO buffers and the pulls are off.

    No concern leaving them unconnected.

    Make sure the software does not modify the padconfig .

    Regards,

    Sreenivasa