SH7205 Datasheet, PDF (1330/1904 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7200 Series

Section 24 USB 2.0 Host/Function Module (USB)
24.5 Usage Notes
24.5.1 Procedure for Setting the USB Transceiver
When this module is to be used, start by making settings for the internal USB transceiver.
The method for the settings is described below. Figure 24.17 also gives an example of program
code to implement the procedure.
(1) Write 1 to bits UACS14 and UACS5 in USBAC characteristics switching register 0
(USBACSWR0).
(2) Write 1 to the UACS26 bit in USBAC characteristics switching register 1 (USBACSWR1).
Initialization routine
(1) Set 1 to UACS14 and UACS5.
MOVI20 #H'FFFF00C0, R0
MOV.W #H'4020, R1
MOV.W R1, @R0
(2) Set 1 to UACS26.
MOVI20 #H'FFFF00C2, R0
MOV.W #H'0400, R1
MOV.W R1, @R0
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Figure 24.17 Procedure for Setting the USB Transceiver
Rev. 1.00 Mar. 25, 2008 Page 1298 of 1868
REJ09B0372-0100