CY7C656x
x
PRELIMINARY

Document #: 38-08037 Rev. *D Page 2 of 23

3.0 Block Diagrams

Figure 3-1. CY7C65640B Block Diagram

Routing Logic
Hub Repeater
USB Upstream Port
USB 2.0 PHY
PLL
Serial
Interface
Engine
High-Speed
USB Control Logic
SPI Communication
Block
USB Downstream Port 1
USB 2.0
PHY Port Power
Control Port
Status
USB Downstream Port 2
USB 2.0
PHY Port Power
Control Port
Status
USB Downstream Port 3
USB 2.0
PHY Port Power
Control Port
Status
USB Downstream Port 4
USB 2.0
PHY Port Power
Control Port
Status
SPI_SCK
SPI_CS
SPI_SD
D+ D- PWR#[4]
OVR#[4] LEDD+ D- PWR#[3]
OVR#[3 ] LEDD+ D- PWR#[2]
OVR#[2] LEDD+ D- PWR#[1]
OVR#[1] LED
Transaction Tr anslator (X4)
TT RAM
D+ D -
24
MHz
Crystal