...
S2 position | Effect on 1.2 V and 2.5 V rails |
---|---|
FX2 PON (on)* | 1.2 V and 2.5 V rails controlled by USB FX2 microcontroller (signal FX2_PS_EN) |
PON (off) | 1.2 V and 2.5 V rails always enabled |
Table 14: Slide switch S2 settings overview (1.2 V and 2.5 V rails only).
Slide switch S2 conditions the value of signal PS_EN.
...
power rail | S2= PON | S2 = FX2 PON and | S2 = FX2 PON and |
---|---|---|---|
21.5V2V | on | on | off |
12.2V5V | on | on | off |
VCCCIO0 (= 2.5V) | on | on | off |
VCCCIO0 (= 3.3V) | on | on | on |
(1) R131 soldered / R132 unsoldered
(2) R131 unsoldered / R132 soldered
Table 14: Slide switch S2 settings overview ( 1.2V , 2.5V, VCCIO0).