Samsung S3C6400X, User Manual, Page: 840 / 1189

PRELIMINARY
S3C6400X RISC MICROPROCESSOR USB2.0 HS OTG
26-33
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.
·
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.
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 R/W Description Reset Value
GNPTXFSIZ 0x7C00_0028 R/W Non-periodic Transmit Size FIFO Register 32 bits
GNPTXFSIZ Bit R/W Description Initial State
NPTxFDep [31:16]
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.
16’h1800
NPTxFStAddr [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. 16’h1800
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 R/W Description Reset Value
GNPTXSTS 0x7C00_002
C
R Non-periodic Transmit FIFO/Queue Status Register 32 bits
GNPTXSTS Bit R/W Description Initial State