Block Diagram - Samsung S3C2416 User Manual

USB2.0 DEVICE

2 BLOCK DIAGRAM

AHB
Master/Slave
Interface
USB 2.0 Function
AHB
Master/Slave
Interface
USB2.0 Function has a AHB Slave which provides the microcontroller with read and write access to the Control
and Status Registers. And also Function has an AHB Master to enable the link to transfer data on the AHB. The
S3C2416 USB system shown as Figure 16-1, can be configured as following :
1. USB 1.1 Host 1 Port & USB 2.0 Device 1 Port
2. USB 1.1 Host 2 Ports
16-2
PHY Clock
UTMI Interface
Serial Interface
USB 1.1
Host
PHY or Internal
Clock
(48Mhz)
Serial Interface 2
Figure 16-1. USB2.0 Block Diagram
System
Controller
SFR setting
(30Mhz)
USB 2.0 PHY
Control Block
PHY Clock
(48Mhz or
30Mhz)
USB 2.0
PHY
USB 1.1
Transceiver
S3C2416X RISC MICROPROCESSOR
Internal Clock
(48Mhz)
PHY Control Signal
DP
External
USB HOST
or Device
DM
DP
DN