BCM20732S PIN information

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Anonymous
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I have some questions about PIN of BCM20732S.

[notes]
* BCM20732S module pin number is shown after "PIN#"
** BCM20732 chip pin number is shown after "pin#"

(1) PIN#42 and PIN#43 of 20732S can be used simultaneously?
Both pins are connects with pin#32 of BCM20732 I think.
For example, when I use pin#32 as PWM0(P26), what will happen on PIN#43?

Is there any purpose/usage dividing pin#32 to PIN#42 and PIN#43?

Should I connect these lines as single line on main PCB?

Please tell me how I can use them.

I'd like to have schematic about inside of the module.


PIN#44 and PIN#1, and PIN#33 and PIN#34 are also same.


(2) PIN#43 can work as GPIO P26?
MMP20732S-TRM102-R says PIN#43 XTALO32K works as P26 in page 14.
I think it's just a mistake. But please make sure it's wrong or not.


(3) PIN#37 can be used as PUART_RX?
MMP20732S-TRM102-R says PIN#37 P24 works as both TX and RX. Is this correct?
PIN#37 also can be used as SPI1_MOSI I think. Is my understand correct?


(4) PIN#39 has LED1 as an alternate function. What does LED1 mean?

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1 Solution

P12/P26 map to seperate physcial pins, but are Dual bonded internally, so only one of two is available.

The SIP definitely contains the SOC die, and we provide both datasheets here on the website, so this seems to cause alot of confusion for users.

I've attempted to explain the mapping between the SoC and the SIP here: BCM2073XS GPIO Basics

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