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Port D Pin
Alternate
Function
Alternate Function
is Selected By...
Alternate Function
is Described in...
PD[7:0]FD[15:8]

IFCFG1 = 1 and

any WORDWIIDE bit = 1
Slave FIFOs chapter 9 on page 99

Table from EZ-USB(R) Technical Reference Manual (EZ-USB_TRM.pdf).

Signal PS_EN

  • Signal PS_EN enables (1) or disables (0) power rails 1.2 V, 1.5 V and 2.5 V.
    Image RemovedImage Added
    Figure 36: Power rails 1.2 V, 1.5 V and 2.5 V could be enabled/disabled by signal PS_EN.

  • Power-rail 3.3V is not controlled by signal PS_EN and is unconditionally enabled. 
    Image RemovedImage Added  
    Figure 37: Power rails 3.3V could not be enabled/disabled by signal PS_EN.

VCCIO assembly options

According to the corresponding assembly option, power rail VCCCIO0 can depend or not on the power rail 2.5V.

Figure 37: example of VCCIO0 assembly not dependent on 2.5V power rail. The other way is also possible.

Dip Switch S1B = FX2 PON 

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