CYUSB3014 CYPRESS [Cypress Semiconductor], CYUSB3014 Datasheet - Page 9

• Manufacturer Part Number: CYUSB3014
• Description: EZ-USB FX3 SuperSpeed USB Controller UART support up to 4 Mbps
• Manufacturer: CYPRESS [Cypress Semiconductor]

Power
EZ-USB FX3 has the following power supply domains.
IO_VDDQ : This refers to a group of independent supply domains
for digital I/Os. The voltage level on these supplies is 1.8V to
3.3V. EZ-USB FX3 provides six independent supply domains for
digital I/Os listed as follows. Refer to
signals assigned to each power domain.
■
■
■
■
■
■
■
Document Number 001-52136 Rev. *H
VIO1 - GPIF II I/O power supply domain
VIO2 - IO2 power supply domain
VIO3 - IO3 power supply domain
VIO4 - UART/SPI/I
VIO5 - I
supported)
CVDDQ - Clock power supply domain
V
supply voltage level is 1.2 V. This supplies the core logic
circuits. The same supply must also be used for the following:
❐
❐
DD
AVDD : This is the 1.2 V supply for the PLL, crystal oscillator
and other core analog circuits
U3TXVDDQ/U3RXVDDQ : These are the 1.2 V supply volt-
ages for the USB 3.0 interface.
: This is the supply voltage for the logic core. The nominal
2
C and JTAG power supply domain (1.2V to 3.3V is
2
S power supply domain
Table 16
for details on the
PRELIMINARY
VBATT/VBUS : This is the 3.2V to 6V battery power supply for
the USB I/O, and analog circuits. This supply powers the USB
transceiver through EZ-USB FX3's internal voltage regulator.
VBATT is internally regulated to 3.3V.
Power Modes
EZ-USB FX3 supports different power modes as follows:
■
Normal operating power consumption does not exceed the sum
of ICC_CORE max and ICC_USB max (please refer to
for current consumption specifications).
The I/O power supplies (VIO1,VIO2,VIO3,VIO4, VIO5) may be
turned off when the corresponding interface is not in use.
EZ-USB FX3 supports four low power modes:
■
■
■
■
Normal mode: This is the full functional operating mode. In this
mode the internal CPU clock and the internal PLLs are enabled.
Suspend mode with USB 3.0 PHY enabled (L1)
Suspend mode with USB 3.0 PHY disabled (L2)
Standby mode (L3)
Core power down mode (L4)
CYUSB3014
Page 9 of 38
Table 7
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