5/25/2012

Information on JTAG mode pin selection with MDM8220/9x00 chipsets

In order to debug using daisy-chained T32 with MDM8220/9x00 chipsets, OEM needs to 
ensure the mode pins in their board design are connected to get following state:

                         state
mode pin 0          high
mode pin 1          low
mode pin 2          high
mode pin 3          high

The reason for this setup is so that the daisy chain T32 configuration can be set through an internal register TLMM_INT_JTAG_CTRL,
which is determined by value specified in T32 shortcuts Qualcomm provides in folder:

\products\9X00\tools\t32\cmm_scripts

We recommend copying following shortcuts to your desktop to use:

- A9_Mode5
- Q6SW_Mode5

Other shortcuts in the folder are reserved.

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