Cypress CY4603, User Manual

Page: 72 / 94

72 HX3 Kits User Guide, Doc. #: 001-91203 Rev. *D
Hardware
5.3 CY4613 DVK Hardware Design
5.3.1 Board Details
The CY4613 DVK hardware consists of the following components:
■
CYUSB3328-88LTXC hub controller. It is an 8-port Shared Link part, which is configured using
the Blaster Plus tool for six-port operation on the CY4613 board
■
Power supply block to provide 5-V, 3.3-V, and 1.2-V outputs
■
Two standard USB 3.0 downstream ports, two Shared Link USB 2.0 ports, two Shared Link SS
ports, and one USB 3.0 upstream port
■
Configuration-mode selection jumpers (J5 and J6)
■
Onboard 16-KB EEPROM to store the configuration data and HX3 firmware
■
Power (PWR) LED and Hub Suspend Status (SUSP) LED
■
Port Status Indicator LEDs for each downstream port
■
Current-measurement jumper (J20)
5.3.2 Theory of Operation
This section provides a block-level description of the CY4613 hardware shown in Figure 5-14 .
Figure 5-14. CY4613 Hardware Block Diagram
The CY4613 DVK supports six downstream ports, which are terminated as four USB 3.0 ports and
two USB 2.0 ports. The DVK is powered using a 12-V AC-DC adaptor with a current rating of 3 A.
CYUSB3328-88LTXC
USB 3.0
Shared Link
Port 1
USB 3.0
Shared Link
Port 2
USB 2.0
Shared Link
Port 1
USB 2.0
Shared Link
Port 2
D+ / D-
D+
/
D-
I2C
EEPROM
12V to 5V
Regulator
Reset
circuit
26 MHz
Crystal
XTAL_OUT/
XTAL_IN
Dual channel
Power Switch
DS1
_O
VR
CU
RR
DS2
_O
VR
CU
RR
DS
1_
P
W
R
E
N
DS
2_
P
W
R
E
N
D
S
1
_
V
B
U
SE
N_
SL
D
S
2
_
V
B
U
SE
N_
SL
Dual channel
Power Switch
I2
C
BU
S
Port
indicator
LEDs
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RESETN
3.3V
Regulator
1.2V
Regulator
AVDD33
AVDD12/
DVDD12
SS
R
x /
SS
T
x
SS
Rx
/
SS
T
x
Power lines
USB 3.0 lines
USB 2.0 lines
Signal lines
Downstream
Port 4
D+
/
D
-
SS
Rx
/
SS
T
x
Dual channel
Power Switch
Upstream
D+
/
D-
SS
Rx
/
SS
T
x
DS
4_
PW
R
E
N
US
_P
W
R
EN
DS4_O
VRC
U
R
R
U
S
_O
V
RCU
RR
Downstream
Port 3
D+
/
D-
SS
Rx
/
SS
T
x
Single channel
Power Switch
DS
3
_O
V
RC
UR
R
DS3_PWREN Pin
straps
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