User's Manual

Table Of Contents
S3C2450X RISC MICROPROCESSOR SYSTEM CONTROLLER
2-39
8.10 USB PHY POWER CONTROL REGISTER (PHYPWR)
Register Address R/W Description Reset Value
PHYPWR 0x4C00_0084 R/W USB2.0 PHY Power Control Register 0x0000_0000
PHYCTRL Bit Description Initial State
RESERVED [31:6] Must be zero 0
RESERVED [5:4] Must be 0x3 2’b00
RESERVED [3:1] Must be zero 2’b000
FORCE_ SUSPEND [0] Apply Suspend signal for power save
0 = Disable (Normal Operation)
1 = Enable
0
8.11 USB RESET CONTROL REGISTER (URSTCON)
Register Address R/W Description Reset Value
URSTCON 0x4C00_0088 R/W USB Reset Control Register 0x0000_0000
URSTCON Bit Description Initial State
RESERVED [31:3] - 0
FUNC_RESET [2] Function 2.0 S/W Reset
1 = Reset
0
HOST_RESET [1] Host 1.1 S/W Reset
1 = Reset
0
PHY_RESET [0] PHY 2.0 S/W Reset
The PHY_RESET signal must be asserted for at least 10us
1 = Reset
0