cc2564 I2S IO left idle treatment

Tom Cjin

Other Parts Discussed in Thread: CC2564, SN74AVC4T774

hi, if we does not need cc2564 audio function, just use hci send data. so,how we treat the 4 audio i2s interface io? and also the tx_dbg io. thanks.

over 11 years ago

0 Dotan Ziv over 11 years ago

TI__Expert 5840 points

Hi,

The 4 Audio Pins should be Not connected (N.C) if not used.

Regards,

Dotan

0 Tom Cjin over 11 years ago in reply to Dotan Ziv

Prodigy 190 points

hi Dotan, we want cutdown one sn74avc4t774 chip. so we want to leave hci_cts and hci_rts too. is this alright to design this way? thanks again.

0 Dotan Ziv over 11 years ago in reply to Tom Cjin

TI__Expert 5840 points

The CC2564 requires HW flow control, you must connect the RTS and CTS properly

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cc2564 I2S IO left idle treatment