Hi all,
I have took this table from excel sheet of MPC5748G "Input Muxing" sheet. In this table I can see that SPI_2 will work as input as disable low if IMCR[306]=0;
work as input as PG[14] if IMCR[306]=1;
while I am confused for the case of PP[15]. because for this there is no IMCR register value there in the table.
Note: 306 value is merged only for upper two configuration, its confusing for me.
Also, I am working on SPI_2 in master mode but its not working, I am using only PORT P based SPI.
PP[14]--->Clock configured as output with SSS value 1.
PP[13]--->Dout pin configured as output with SSS value 1
PP[15]---> SIN pin configured as input with SSS value 2 while IMCR[306] and SSS 2 as per above table.
Note: I have tried this pin in both ways without writing anything in IMCR register.
PP[12]--->SC_0--->configured as output with SSS value 1.
Please do let me know If I have done anything wrong to configure SPI_2 as Master mode.b55689petervlna
Hello,
this excel sheet is little bit confusing. If you want to use pin PP[15] as a SIN, you must configure IMCR[306] SSS register with value 2 (PP[15] selected).
This is equivalent to the table below:
Value 818 is value for IMCR + 512. Value 512 must be deducted because of header file array definition. This array is defined as 512 long (818-512=306).
Hope it helps.
Martin
