DM8148 - PINMUX - Datasheet for registers description

Vincent CARRIER

Hi,

We are looking for the DM8148 complete PIN MUX registers description (so called "MUXMODE")

We have some PIN MUX in the DM8148 global datasheet and TRM update (very recently posted, sept 9th) , but only for the LSB (8 bits) of the registers.

Uboot does configure some MSB also (bit 17, 19 could be for MDIO ..... bit 18 seems to be for IO ?)

any one could point out a complete register description for DM8148 pinmux ?

regards

Vincent

over 13 years ago

0 Viet Dinh over 13 years ago

TI__Genius 15310 points

Vincent,

You can download pinmux util from DM8148 Landing page:

http://processors.wiki.ti.com/index.php/DM814x_Overview

BR,

Viet

0 Vincent CARRIER over 13 years ago in reply to Viet Dinh

Prodigy 90 points

Hi Mr DINH,

pinmux PINCNTL1 to PINCNTL270, which adress are 0x48140800 to 0x48140C34, do have some MSB that can be programmed. We are looking for this MSB bit. The 8 LSB provide configuration choice for the pin function. These MSB have the bit below :

IDIS - Receiver disabled
IEN - Receiver enabled
IPD - Internal pull-down
IPU - Internal pull-up
DIS - Internal pull disabled

The PINMUX software utility says the bit have the value below, but are absolutly wrong :
IDIS/IEN bit 17
IPU/IPD bit 17
DIS bit 16

Can you provide the right value for these bits position ?

Regards

Vincent

0 Viet Dinh over 13 years ago in reply to Vincent CARRIER

TI__Genius 15310 points

Vincent,

Here is an excerpt from the specification document…

The datasheet and TRM will be updated to include this soon.

BR,

Viet

0 Vincent CARRIER over 13 years ago in reply to Viet Dinh

Prodigy 90 points

Thanks a lot VIET,

another one :

How can we use pin "R5" on DM8148, that is controled by pinmux register PINCNTL15, as a output audio clock "ATL_CLKOUT2" ?

This is not mentioned in the pinmux software.

Regards

Vincent

0 Viet Dinh over 13 years ago in reply to Vincent CARRIER

TI__Genius 15310 points

Vincent,

Where do you get this signal, "ATL_CLKOUT2"? I search the Data sheet (DS) and TRM but could not find that signal.

The pinmux register for PINCNTL15 is defined in DS Table 4-11:

0 Vincent CARRIER over 13 years ago in reply to Viet Dinh

Prodigy 90 points

Hi VIET

PIN R5 = AUD_CLKIN1/MCA[0]_AXR[8]/MCA[1]_AHCLKX/MCA[4]_AHCLKX/ATL_CLKOUT2/EDMA_EVT3/TIM2_IO/GP0[8]

regards

Vincent

0 Viet Dinh over 13 years ago in reply to Vincent CARRIER

TI__Genius 15310 points

Vincent,

Do you have our latest DS released from ti.com product folder? This is what I got from the DM8148 DS SPRS647A–MARCH 2011–REVISED JULY 2011:

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DM8148 - PINMUX - Datasheet for registers description