This register holds the size and the memory start address of the Periodic TxFIFO
Module Instance Base Address Register Address
usb0 0xFFB00000 0xFFB00100
usb1 0xFFB40000 0xFFB40100

Offset: 0x100

Access: RW

Important: To prevent indeterminate system behavior, reserved areas of memory must not be accessed by software or hardware. Any area of the memory map that is not explicitly defined as a register space or accessible memory is considered reserved.
Bit Fields
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16



RW 0x2000

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



RW 0x4000

hptxfsiz Fields

Bit Name Description Access Reset
29:16 ptxfsize

This value is in terms of 32-bit words. Minimum value is 16 Maximum value is 1024 The power-on reset value of this register is specified as the 1024.

RW 0x2000
14:0 ptxfstaddr

The power-on reset value of this register is the sum of the Largest Rx Data FIFO Depth and Largest Non-periodic Tx Data FIFO. Programmed values must not exceed the power-on value

RW 0x4000