r8a66597 Renesas Electronics Corporation., r8a66597 Datasheet - Page 128

• Manufacturer Part Number: r8a66597
• Description: Assp Usb2.0 2 Port Host/1 Port Peripheral Controller
• Manufacturer: Renesas Electronics Corporation.

R8A66597FP/DFP/BG
3.3.1
R e v 1 . 0 1
Maximum Packet Size Setting
Maximum packet size for each pipe is set in the MXPS bit of the DCPMAXP and PIPEMAXP registers. DCP and pipes
1-5 can be set with any maximum packet size defined in the USB specifications. Pipes 6-9 are limited to maximum
packet size of 64 bytes. Set the maximum packet size before starting transfers (set “PID=BUF”).
DCP: set to “64” for Hi-Speed operation
DCP: set to “8”, “16”, “32”, or “64” for Full-Speed operation
PIPE 1-5: set to “512” for Hi-Speed bulk transfer
PIPE 1-5: set to “8”, “16”, “32”, or “64” for Full-Speed bulk transfer
PIPE 1-2: set a value from “1” to “1024” for Hi-Speed isochronous transfer
PIPE: 1-2: set a value from “1” to “1023” for Full-Speed isochronous transfer. For more details, see section 3.9.
PIPE 6-9: Set a value from “1” to “64”.
High-bandwidth transfers are not yet supported in interrupt and isochronous transfers.
O c t 1 7 , 2 0 0 8
p a g e 1 2 8 o f 1 8 3