BLOOPBCKCTRL 

         Loopback Control Register
Module Instance Base Address Register Address
i_usb31_0__ahb_slave__11000000__DWC_usb31_block_debug__SEG_L4_AHB_USB1_0x0_0x100000 0x1100D800 0x1100D900

Size: 32

Offset: 0x100

Access: RW

Important: The value of a reserved bit must be maintained in software. When you modify registers containing reserved bit fields, you must use a read-modify-write operation to preserve state and prevent indeterminate system behavior.
Bit Fields
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16

reserved_31_11

RO 0x0

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

reserved_31_11

RO 0x0

reserved_10_8

RW 0x0

loopback_prtnum

RW 0x0

loopback_level

RW 0x0

loopback_mode

RW 0x0

loopback_mode_en

RW 0x0

BLOOPBCKCTRL Fields

Bit Name Description Access Reset
31:11 reserved_31_11 
Reserved
 RO 0x0
10:8 reserved_10_8 
Reserved
 RW 0x0
7:4 loopback_prtnum 
Loopback Port Number 
  
   Valid for Host Mode Loopback
 RW 0x0
3:2 loopback_level 
Loopback Level
   - 2'b00 : SSP PIPE
   - 2'b01 : SSP PHY
   - 2'b10 : Reserved
   - 2'b11 : Reserved
 RW 0x0
1 loopback_mode 
Loopback Mode
  
   - 1'b0 :SW loopback Mode 
  
   - 1'b1 :BIST HW Loopback Mode
 RW 0x0
0 loopback_mode_en 
Enable Loopback Mode
 RW 0x0