SH7203 Datasheet, PDF (1214/1686 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7200 Series

Section 23 USB 2.0 Host/Function Module (USB)
(1) Transfer Types
The TYPE bit in PIPEPCFG is used to specify the transfer type for each pipe. The transfer types
that can be set for the pipes are as follows.
1. DCP: No setting is necessary (fixed at control transfer).
2. PIPE1 and PIPE2: These should be set to bulk transfer or isochronous transfer.
3. PIPE3 to PIPE5: These should be set to bulk transfer.
4. PIPE6 and PIPE7: These should be set to interrupt transfer.
(2) Endpoint Number
The EPNUM bit in PIPECFG is used to set the endpoint number for each pipe. The DCP is fixed
at endpoint 0. The other pipes can be set from endpoint 1 to endpoint 15.
1. DCP: No setting is necessary (fixed at end point 0).
2. PIPE1 to PIPE7: The endpoint numbers from 1 to 15 should be selected and set.
These should be set so that the combination of the DIR bit and EPNUM bit is unique.
(3) Maximum Packet Size Setting
The MXPS bit in DCPMAXP and PIPEMAXP is used to specify the maximum packet size for
each pipe. DCP and PIPE1 to PIPE5 can be set to any of the maximum pipe sizes defined by the
USB specification. For PIPE6 and PIPE7, 64 bytes are the upper limit of the maximum packet
size. The maximum packet size should be set before beginning the transfer (PID = BUF).
1. DCP: 64 should be set when using high-speed operation.
2. DCP: Select and set 8, 16, 32, or 64 when using full-speed operation.
3. PIPE1 to PIPE5: 512 should be set when using high-speed bulk transfer.
4. PIPE1 to PIPE5: Select and set 8, 16, 32, or 64 when using full-speed bulk transfer.
5. PIPE1 and PIPE2: Set a value between 1 and 1024 when using high-speed isochronous
transfer.
6. PIPE1 and PIPE2: Set a value between 1 and 1023 when using full-speed isochronous transfer.
7. PIPE6 and PIPE7: Set a value between 1 and 64.
The high bandwidth transfers used with interrupt transfers and isochronous transfers are not
supported.
Rev. 2.00 Apr. 16, 2008 Page 1184 of 1652
REJ09B0313-0200