
Functional Overview
125
December 2003 Revised March 2005
SPRS231D
Table 321. USB Host Registers (Continued)
BYTE
ADDRESS
RESET
VALUE
ACCESS
TYPE
ACCESS
WIDTH
DESCRIPTION
REGISTER NAME
FFFB:A030h
USB_HC_DN_HEAD
USB Host Controller Physical Address of Head of
List of Retired Transfer Descriptor Register
R
32
0000 0000h
FFFB:A034h
USB_HC_FM_INTVRL
USB Host Controller Frame Interval Register
R/W
32
0000 xEDFh
FFFB:A038h
USB_HC_FM_RMN
USB Host Controller Frame Remaining Register
R
32
0000 0000h
FFFB:A03Ch
USB_HC_FM_NMB
USB Host Controller Frame Number Remaining
Register
R
32
0000 0000h
FFFB:A040h
USB_HC_PRD_SRT
USB Host Controller Period Start Register
R/W
32
xxxx x000h
FFFB:A044h
USB_HC_LSPD_TRSH
USB Host Controller Low Speed Threshold
Register
R/W
32
0Axx X203h
FFFB:A048h
USB_HC_RH_DSC_A
USB Host Controller Root Hub A Register
R/W
32
0000 0000h
FFFB:A04Ch
USB_HC_RH_DSC_B
USB Host Controller Root Hub B Register
R/W
32
0000 0000h
FFFB:A050h
USB_HC_RH_STS
USB Host Controller Root Hub Register
R/W
32
0000 0000h
FFFB:A054h
USB_HC_RH_PRT_STS1
USB Host Controller Port 1 Control and Status
Register
R/W
32
0000 0100h
FFFB:A058h
USB_HC_RH_PRT_STS2
USB Host Controller Port 2 Control and Status
Register
R/W
32
0000 0100h
FFFB:A05Ch
USB_HC_RH_PRT_STS3
USB Host Controller Port 3 Control and Status
Register
R/W
32
0000 0100h
FFFB:A060h
FFFB:A0DFh
Reserved
FFFB:A0E0h
USB_HC_UE_ADDR
USB Host Contrroller Host UE Address Register
R
32
0000 0000h
XXXX XXX
FFFB:A0E4h
USB_HC_UE_STAT
USB Host Contrroller Host UE Status Register
R
32
FFFB:A0E8h
USB_HC_TM_OUT_CTRL
USB Host Controller Time Out Control Register
R/W
32
0000 0000h
XXXX XXX
FFFB:A0ECh
Bit 0 is zero.
USB_HC_HST_REV
USB Host Controller Host Revision Register
R
32
Table 322. Frame Adjustment Counter (FAC) Registers
BYTE
ADDRESS
REGISTER NAME
DESCRIPTION
ACCESS
WIDTH
ACCESS
TYPE
RESET
VALUE
FFFB:A800
FAC_CNT
FAC Frame Adjustment Reference Counter Register
16
R/W
0000h
FFFB:A810
FAC_SYNC_CNT
FAC Sync Counter Register
16
R
0000h
FFFB:A814
FAC_START_CNT
FAC Start Counter Register
16
R
0000h
FFFB:A804
FAC_CNT_RSLT
FAC Frame Starter Count Register
16
R
0000h
FFFB:A808
FAC_CTRL
FAC Control Register
16
R/W
0000h
FFFB:A80C
FAC_STATUS
FAC Status Register
16
R
0000h
Table 323. HDQ/1-Wire Interface Registers
BYTE
ADDRESS
REGISTER NAME
DESCRIPTION
ACCESS
WIDTH
ACCESS
TYPE
RESET
VALUE
FFFB:C000
HDQ_TX_DATA
HDQ Transmit Register
32
R/W
0000 0000h
FFFB:C004
HDQ_RX_BUF
HDQ Receive Buffer Register
32
R
0000 0000h
FFFB:C008
HDQ_CNTL_STAT
HDQ Control and Status Register
32
R/W
0000 0000h
FFFB:C00C
HDQ_INT_STAT
HDQ Interrupt Status Register
32
R
0000 0000h