7643 datasheet(6/424 Pages) RENESAS

6 / 424 page

Rev.2.00

Aug 28, 2006

page 2 of 12

7643 Group

REJ09B0133-0200

2.3 Serial I/O ................................................................................................................................... 23

2.3.1 Memory map .................................................................................................................... 23

2.3.2 Related registers ............................................................................................................. 24

2.3.3 Serial I/O connection examples .................................................................................... 27

2.3.4 Serial I/O application example ...................................................................................... 29

2.3.5 Notes on serial I/O ......................................................................................................... 36

2.4 UART ......................................................................................................................................... 37

2.4.1 Memory map .................................................................................................................... 37

2.4.2 Related registers ............................................................................................................. 38

2.4.3 UART transfer data format ............................................................................................ 45

2.4.4 Transfer bit rate .............................................................................................................. 46

2.4.5 Operation of transmitting and receiving ....................................................................... 47

2.4.6 UART application example ............................................................................................. 49

2.4.7 Notes on UART ............................................................................................................... 73

2.5 DMAC ......................................................................................................................................... 75

2.5.1 Memory map .................................................................................................................... 75

2.5.2 Related registers ............................................................................................................. 76

2.5.3 DMAC operation description .......................................................................................... 84

2.5.4 DMAC arbitration ............................................................................................................. 88

2.5.5 Transfer time .................................................................................................................... 88

2.5.6 DMAC application example ............................................................................................ 91

2.5.7 Notes on DMAC .............................................................................................................. 95

2.6 USB ............................................................................................................................................ 96

2.6.1 USB outline ...................................................................................................................... 96

2.6.2 Memory map .................................................................................................................. 103

2.6.3 Related registers ........................................................................................................... 104

2.6.4 USB transmit .................................................................................................................. 124

2.6.5 USB receive ................................................................................................................... 126

2.6.6 USB interrupts ............................................................................................................... 127

2.6.7 Application example ...................................................................................................... 128

2.6.8 Connection with other functions .................................................................................. 148

2.6.9 Application circuit example .......................................................................................... 161

2.6.10 Notes on USB function .............................................................................................. 163

2.7 Frequency synthesizer ........................................................................................................ 167

2.7.1 Memory map .................................................................................................................. 167

2.7.2 Related registers ........................................................................................................... 168

2.7.3 Functional description ................................................................................................... 171

2.7.4 Notes on frequency synthesizer .................................................................................. 173

2.8 External devices connection .............................................................................................. 174

2.8.1 Memory map .................................................................................................................. 174

2.8.2 Related registers ........................................................................................................... 175

2.8.3 Functional description ................................................................................................... 176

2.8.4 Slow memory wait ......................................................................................................... 177

2.8.5 HOLD function ............................................................................................................... 180

2.8.6 Expanded data memory access .................................................................................. 181

2.8.7 External devices connection example ........................................................................ 182

2.8.8 Notes on external devices connection ....................................................................... 186

2.9 Reset ........................................................................................................................................ 188

2.9.1 Connection example of reset IC ................................................................................. 188

2.9.2 Notes on reset ............................................................................................................... 188

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