SH7763 Datasheet, PDF (1615/2026 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC Engine Family SH-4A Series

Section 36 USB Function Controller (USBF)
36.3.38 Endpoint Information Register (EPIR)
EPIR is a register to set the configuration information for each endpoint. 5 bytes of the
information are required for one endpoint and the formats are listed in tables 36.4 and 36.5. Write
the data in order from endpoint 0. Do not write more than 5 (bytes) × 10 (endpoints) = 50 bytes.
Write this information once at power-on reset. Do not write it again afterwards.
Write data of one endpoint is described below. EPIR writes data in the same address in order.
Therefore though there is only one EPIR register, write data for registration number N (N is from
0 to 9) is listed as EPIRN0 to EPIRN4 (EPIR [registration number] [write order]) for the purpose
of explaining. Write data in order from EPIR00.
• EPIRN0:
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[7:4]
D[3:2]
D[1:0]
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 4 D[7:4]
3, 2
D[3:2]
1, 0
D[1:0]
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 Number
Settable range: 0 to 5
Undefined W Configuration Number to which Endpoint Belongs
Settable range: 0 or 1
Undefined W Interface Number to which Endpoint Belongs
Settable range: 0 to 3
Rev. 1.00 Oct. 01, 2007 Page 1549 of 1956
REJ09B0256-0100