SH7763 Datasheet, PDF (1618/2026 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC Engine Family SH-4A Series

Section 36 USB Function Controller (USBF)
• EPIRN4:
Bit: 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
————————————————
Initial value: — — — — — — — — — — — — — — — —
R/W: R R R R R R R R R R R R R R R R
Bit: 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
————————
D[7:0]
Initial value: — — — — — — — — — — — — — — — —
R/W: R R R R R R R R W W W W W W W W
Bit
Bit Name
31 to 8 
7 to 0 D[7:0]
Initial value R/W Description
Undefined R Reserved
These bits are always read as undefined value.
Write value should always be 0.
Undefined W Endpoint FIFO Number
Settable range: 0 to 5
An endpoint number is an endpoint number used by the USB host. The endpoint FIFO number
corresponds to the endpoint number which is described in this manual. When each endpoint
number and endpoint FIFO number corresponds to each other, transfer can be performed between
the USB host and the endpoint FIFO. Note that the setting values are limited as described below.
• Since each endpoint FIFO is optimized by a dedicated hardware corresponding to each transfer
method, transfer direction, and maximum packet size, set the endpoint FIFO with a transfer
method, transfer direction, and maximum packet size shown in the table below.
Example: Endpoint FIFO number 1 cannot be set as other than bulk transfer, OUT, and
maximum packet size (64 bytes). Although endpoint FIFO number 4 cannot be set as other
than isochronous transfer and OUT, maximum packet size can be set in the range of 0 to 64
bytes.
• Endpoint 0 and endpoint FIFO number 0 must correspond.
• The maximum packet size of endpoint FIFO number 0 can be set to 8 bytes only.
• The setting value of endpoint FIFO number 0 can be set to the maximum packet size only and
the rest data is all 0.
• The maximum packet size of endpoint FIFO numbers 1 and 2 can be set to 64 only.
• The maximum packet size of endpoint FIFO numbers 3 can be set to 8 only.
• The maximum packet size of endpoint FIFO numbers 4 and 5 can be set in the range of 0 to
64.
Rev. 1.00 Oct. 01, 2007 Page 1552 of 1956
REJ09B0256-0100