Preliminary
S3C2451X RISC MICROPROCESSOR
USB HOST CONTROLLER
16-1
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.
16
USB HOST CONTROLLER
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
HCI
SLAVE
BLOCK
APP_SADR(8)
APP_SDATA(32)
HCI_DATA(32)
CONTROL
CONTROL
OHCI
REGS
USB
STATE
CONTROL
LIST
PROCESSOR
BLOCK
ED&TD
REGS
Cntl
HCI
MASTER
BLOCK
CONTROL
ED/TD_DATA(32)
ED/TD
STATUS(32)
64x8
FIFO
Cntl
HC_DATA(8)
DF_DATA(8)
APP_MDATA(32)
HCM_ADR/
DATA(32)
CONTROL
STATUS
CONTROL
CTRL
CTRL
RH_DATA(8)
DF_DATA(8)
H
C
F_D
A
TA
(8)
A
ddr(6)
FI
F
O
_
D
AT
A(
8
)
64x8
FIFO
ROOT
HUB
&
HOST
SIE
HSIE
S/M
DPLL
ROOT
HUB
&
HOST
SIE
OHCI
ROOT HUB
REGS
PORT
S/M
PORT
S/M
PORT
S/M
X
V
R
USB
1
X
V
R
USB
2
HCI
BUS
EXT.FIFO STATUS
RCF0_RegData(32)
TxEnl
TxDpls
TxDmns
RcvData
RcvDpls
RcvDmns
Figure 16-1. USB Host Controller Block Diagram