Samsung S3C6400X User Manual page 840

S3C6400X RISC MICROPROCESSOR
NON-PERIODIC TRANSMIT FIFO SIZE REGISTER (GNPTXFSIZ)
The application can program the RAM size and the memory start address for the Non-Periodic TxFIFO.
Register Address
GNPTXFSIZ 0x7C00_0028
GNPTXFSIZ
NPTxFDep [31:16]
NPTxFStAddr
NON-PERIODIC TRANSMIT FIFO/QUEUE STATUS REGISTER (GNPTXSTS)
This read-only register contains the free space information for the Non-Periodic TxFIFO and the Non-Periodic
Transmit Request Queue.
Register Address
GNPTXSTS 0x7C00_002
C
GNPTXSTS
· Maximum value is 32768
The power-on reset value of this register is specified
as the Largest Rx Data FIFO Depth (6144).
A new value must be written to this field.
Programmed values must not exceed the power-on
value set.
R/W
R/W
Bit R/W
R_W
Non-Periodic TxFIFO Depth
This value is in terms of 32-bit words.
· Minimum value is 16
· Maximum value is 32768
The power-on reset value of this register is specified
as the Largest Non-Periodic Tx Data FIFO Depth
(6144).
A new value must be written to this field.
Programmed values must not exceed the power-on
value set.
[15:0] R_W Non-Periodic Transmit Start Address
This field contains the memory start address for
Non-Periodic Transmit FIFO RAM.
The power-on reset value of this register is specified
as the Largest Rx Data FIFO Depth (6144).
A new value must be written to this field.
Programmed values must not exceed the power-on
value set.
R/W
R Non-periodic Transmit FIFO/Queue Status Register
Bit R/W
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
Description
Non-periodic Transmit Size FIFO Register
Description
Description
Description
USB2.0 HS OTG
Reset Value
32 bits
Initial State
16'h1800
16'h1800
Reset Value
32 bits
Initial State
26-33