RM0321 Datasheet, PDF (109/584 Pages) STMicroelectronics – SPEAr320S address map and registers

RM0321
USB 2.0 Host ports (UHC)
1. The offset is intended to be with respect to the operational registers base address:USBBASE is
fixed to the EHCI base address.
Table 109. EHCI host controller operational registers summary
Name
Offset ⁽¹⁾
Type Reset value Description
USBCMD
USBSTS
USBOPBASE+ 0x00 RO
USBOPBASE+ 0x04 RW
32’h00080900 USB command
32’h00001000 USB status
USBINTR
FRINDEX
CTRLDSSEGMENT
USBOPBASE+ 0x08 RW
USBOPBASE+ 0x0C RW
USBOPBASE+ 0x10 RW
32’h0
32’h0
32’h0
PERIODICLISTBASE USBOPBASE+ 0x14 RW 32’h0
ASYNCLISTADDR USBOPBASE+ 0x18 RW 32’h0
USB interrupt enable
USB frame index
4G segment selector
Periodic frame list base
address
Asynchronous list address
1. Offset calculated by reading HCCAPBASE. The offset is kept with respect to the operational
registers base address: USBOPBASE = USBBASE + 0x10.
Table 110. EHCI host controller auxiliary power well registers summary
Name
Offset ⁽¹⁾
Type Reset value Description
CONFIGFLAG
USBOPBASE+ 0x40 RW 32’h0
Configured flag
PORTSC1
PORTSC2
USBOPBASE+ 0x44
(2)
0x48
32’h00002000 Port 1 status and control
32’h00000000 Port 2 status and control
1. The offset is intended to be with respect to the operational registers base address
(USBOPBASE).
2. Depending on port power control (see PP bit description in PORTSC register).
Table 111. EHCI host controller specific registers summary
Name
Offset ⁽¹⁾
Size
(bit)
Type Reset value
Description
INSNREG00
INSNREG01
INSNREG02
USBOPBASE+0x80 14
USBOPBASE+ 0x84 32
USBOPBASE+0x88 12
RW 14’h0
Programmable microframe
base value
RW
32’h00200020
Programmable packet buffer
out/in thresholds
RW 12’h080
Programmable packet buffer
depth
INSNREG03
INSNREG04
INSNREG05
USBOPBASE+0x8C 1
USBOPBASE+ 0x90 3
USBOPBASE+0x94 32
RW 1’h0
Break memory transfer
RW 3’h0
For debug purposes only
RW
32’h00001000
UTMI control and status
registers
1. The offset is intended to be with respect to the operational registers base address
(USBOPBASE).
Doc ID 022642 Rev 3
109/584