Analog Devices ADSP-SC58 Series Hardware Reference Manual page 1638

ADSP-SC58x USB Register Descriptions
Table 27-92: USB_TXFIFOSZ Register Fields (Continued)
Bit No.
(Access)
27–226
Bit Name
ADSP-SC58x/ADSP-2158x SHARC+ Processor Hardware Reference
Description/Enumeration
8 PktSz=2048, DPB0=2048, DPB1=4096
9 PktSz=4096, DPB0=4096, DPB1=8192