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Port D Pin | Alternate Function | Alternate Function is Selected By... | Alternate Function is Described in... |
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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).
Power-rail 3.3V is not controlled by signal PS_EN and is unconditionally enabled.
Figure 37: Power rails 3.3V could not be enabled/disabled by signal PS_EN.
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.
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power rail | S1B= PON | S1B = FX2 PON and | S1B = FX2 PON and | |||
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1.2 V | on | on | off | |||
1. | 2V5 V | on | on | off | ||
2. | 5V5 V | on | on | off | ||
VCCCIO0 (= 2. | 5V5 V) | R131R102-R103+ | R132- assembly (1) | on | on | off |
VCCCIO0 (= 3. | 3V3 V) | R131R102+R103- | R132+ assembly (2) | on | on | on |
(1) R131 soldered / R132 unsoldered R102 unpopulated / R103 populated
(2) R131 unsoldered / R132 soldered R102 populated / R103 unpopulated
Table 40: Dip switch S1B settings overview ( 1.2 V, 1.2V 5 V , 2.5V5 V, VCCIO0).
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