Samsung S3C2451X User Manual page 371

S3C2451X RISC MICROPROCESSOR
16
OVERVIEW
S3C2451X supports 2-port USB host interface as follows:
•
OHCI Rev 1.0 compatible
•
USB Rev1.1 compatible
•
Two down stream ports
•
Support for both LowSpeed and FullSpeed USB devices
APP_SADR(8)
APP_SDATA(32)
HCI_DATA(32)
CONTROL
APP_MDATA(32)
HCI HCM_ADR/
BUS
DATA(32)
CONTROL
EXT.FIFO STATUS
USB HOST CONTROLLER
HCI
SLAVE
BLOCK
CONTROL
OHCI
CONTROL
REGS
ED/TD_DATA(32)
ED/TD
STATUS(32)
HCI
MASTER
BLOCK
STATUS
HC_DATA(8)
DF_DATA(8)
Figure 16-1. USB Host Controller Block Diagram
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
RCF0_RegData(32)
USB
CONTROL
STATE
CONTROL
Cntl
LIST
PROCESSOR
CTRL
BLOCK
CTRL
ED&TD
REGS
RH_DATA(8)
64x8
FIFO
DF_DATA(8)
Cntl
64x8
FIFO
USB HOST CONTROLLER
ROOT HUB
REGS
PORT
TxEnl
ROOT
HUB TxDpls
PORT
&
HOST TxDmns
SIE
ROOT
RcvData
HSIE
HOST
RcvDpls
S/M
RcvDmns
PORT
DPLL
OHCI
1
X
USB
V
S/M
R
2
X
USB
V
S/M
R
HUB
&
SIE
S/M
16-1