About IMX6Q AIPSTZ OPACR

[jiongzhongliu]

      Now I use your company's product IMX6Q as my CPU, and I try to used the TrustZone function.  Now I want to set the UART4  as a untrust peripheral .The datasheet say I should configure the register CSU and AIPSTZ. USART4 is belong to AIPS-2, but I can not  find  which OPACR the UART4 belong to . Is there other datasheet introduce this imformation? Can you help me?

[igorpadykov]

Hi jiongzhong

Table 2-3  "AIPS-2 memory map" i.MX6DQ Reference Manual

lists peripherals, they correspond records in "AIPSTZ memory map"

on p.564 AIPSTZ2_OPACR,AIPSTZ2_OPACR1.. and so on

http://cache.freescale.com/files/32bit/doc/ref_manual/IMX6DQRM.pdf

Best regards

igor

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[jiongzhongliu]

hi igorpadykov

    the table 2-3 I only can  confirm is that the UART4 is belong to AIPS-2,and AIPS-2 occpuies a 1Mbyte portion of the address space, the register maps of the IPS peripherals are location on 16KByte, there are 32 OPACRx that can configuration the thirty-two 16-Kbyt external IPS peripherals. The table2-3 still not say which 16-Kbyte block address space  a OPACRx corresponding to. The datasheet written is unclear.Can you help me explain it ?

    thank you!

[igorpadykov · Accepted solution]

[jiongzhongliu]

thanks!