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Hi team,
Here's an issue from the customer may need your help:
It is documented as follows in section 4.3.2 of Technical Reference Manual:
Regarding the GIOB[2] pin input multiplexing, Control Register Bit A=Control Register Bit B=PINMMR29[16]. Whether the bit is 1 or 0, the equation A and not(B) is constant equal to = .FLASE. And the equation not(A) or (A and B) is constant equal to = TRUE, i.e. whether PINMMR29[16] is 1 or 0, the GIOB[2] has the F2 pin selected, is that correct?
Above is the multiplexing table in section 4.6, comparing the data sheet of the TMS570LS3137, it can be determined that the PINMMR9 [16:23] byte is used to control the multiplexing of the V10 pins. V10 is multiplexed to GIOB[2] as long as PINMMR9[17] is set; V10 is multiplexed to another function as long as PINMMR9[17] is set to 0. Based on the previous analysis, the GIOB[2] uses the F2 pin, i.e. whether GIOB[2] uses F2 or V10 depends on PINMMR9[17], and PINMMR29[16] has no effect. Is this correct?
Could you help check this case? Thanks.
Best Regards,
Cherry
Hi,
Thanks for your help. They're using 337-ball ZWT.
Thanks and regards,
Cherry
The TMS570LS31x has one dedicated terminal (F2) and one multiplexed terminal (V10) for the GIOB[2] signal. This multiplexor's selection is controlled by PINMMR29[16]. When
PINMMR29[16] is cleared (0, default), the connection to the GIOB[2] comes from the dedicated terminal (F2). When PINMMR29[16] is set, the connection to the GIOB[2] comes from the V10 terminal.
PINMMR29[16] = 0 --> F2 --> GIOB[2]
PINMMR29[16] = 1 --> V10 --> GIOB[2]
the multiplexing table in section 4.
Is used to configure V10 as output. As datasheet says that the application cannot output a level onto this terminal when it is configured as GIOB[2]. So PINMMR9[18] should not be used.
PINMMR9[16] = 1 --> MibSPI3NCS[0]
PINMMR9[17] =1 --> AD2EVT