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7643 Datasheet(PDF) 257 Page - Renesas Technology Corp |
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7643 Datasheet(HTML) 257 Page - Renesas Technology Corp |
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257 / 424 page  Rev.2.00 Aug 28, 2006 page 136 of 202 7643 Group REJ09B0133-0200 APPLICATION 2.6 USB Fig. 2.6.31 Control procedure (USB endpoint 1 IN interrupt routine) USBINDEX 0116 (Address : 5816) USB endpoint 1 IN interrupt routine • Check of IN_PKT_RDY bit • Endpoint 1 IN_CSR (Address : 5916),bit0? 0 1 USBFIFO1 (X)th data (Address : 6116) • Setting of (X)th data to FIFO. IN_PKT_RDY bit set RTS CLT (Note 1) CLD (Note 2) Push registers to stack Pop registers (X) register 0016 • Setting of “0” to index register X (X)+1 (X) = 8? Y N Notes 1: This is executed when index X mode flag is used. 2: This is executed when decimal mode flag is used. • Push registers used in the interrupt routine |
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