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38K2 Group User’s Manual
List of figures
Fig. 96 Structure of DP1 interrupt source register ................................................................ 1-65
Fig. 97 Structure of DP1 control register ................................................................................ 1-66
Fig. 98 Structure of DP1 status register ................................................................................. 1-66
Fig. 99 Structure of DP2 interrupt source register ................................................................ 1-67
Fig. 100 Structure of DP2 control register .............................................................................. 1-68
Fig. 101 Structure of DP2 status register ............................................................................... 1-68
Fig. 102 Structure of Downstream port control register ....................................................... 1-69
Fig. 103 External bus interface ................................................................................................ 1-70
Fig. 104 Data transfer timing of memory channel ................................................................. 1-70
Fig. 105 External bus interface (EXB) pin assignment ......................................................... 1-71
Fig. 106 Block diagram of external bus interface (EXB) ...................................................... 1-72
Fig. 107 EXB related registers (1) ........................................................................................... 1-76
Fig. 108 EXB related registers (2) ........................................................................................... 1-76
Fig. 109 Structure of EXB interrupt source enable register ................................................. 1-77
Fig. 110 Structure of EXB interrupt source register .............................................................. 1-77
Fig. 111 Structure of EXB index register ................................................................................ 1-78
Fig. 112 Structure of Register window 1 ................................................................................ 1-78
Fig. 113 Structure of Register window 2 ................................................................................ 1-78
Fig. 114 Index00[low]; Structure of External I/O configuration register .............................. 1-79
Fig. 115 Index00[high]; Structure of External I/O configuration register ........................... 1-79
Fig. 116 Index01[low]; Structure of Transmit/Receive buffer register ................................. 1-80
Fig. 117 Index02[low]; Structure of Memory channel operation mode register ................. 1-80
Fig. 118 Index03[low]; Structure of Memory address counter ............................................. 1-80
Fig. 119 Index03[high]; Structure of Memory address counter ............................................ 1-81
Fig. 120 Index04[low]; Structure of End address register .................................................... 1-81
Fig. 121 Index04[high]; Structure of End address register ................................................... 1-81
Fig. 122 CPU channel receiving operation ............................................................................. 1-82
Fig. 123 CPU channel tranmitting operation .......................................................................... 1-83
Fig. 124 Memory channel receiving operation (1) ................................................................. 1-84
Fig. 125 Memory channel receiving operation (2) ................................................................. 1-85
Fig. 126 Memory channel receiving operation (3) ................................................................. 1-86
Fig. 127 Memory channel tranmitting operation (1) .............................................................. 1-87
Fig. 128 Memory channel tranmitting operation (2) .............................................................. 1-88
Fig. 129 Multichannel RAM timing diagram (no wait) ........................................................... 1-89
Fig. 130 Multichannel RAM timing diagram (one wait) ......................................................... 1-89
Fig. 131 Multichannel RAM operation example ...................................................................... 1-90
Fig. 132 Structure of A-D control register .............................................................................. 1-91
Fig. 133 10-bit A-D mode reading ........................................................................................... 1-91
Fig. 134 A-D converter block diagram .................................................................................... 1-92
Fig. 135 Block diagram of Watchdog timer ............................................................................ 1-93
Fig. 136 Structure of Watchdog timer control register .......................................................... 1-93
Fig. 137 Example of reset circuit ............................................................................................. 1-94
Fig. 138 Reset sequence .......................................................................................................... 1-94
Fig. 139 Block diagram of PLL circuit ..................................................................................... 1-95
Fig. 140 Structure of PLL control register .............................................................................. 1-96
Fig. 141 Ceramic resonator or quartz-crystal oscilltor circuit .............................................. 1-98
Fig. 142 External clock input circuit ........................................................................................ 1-98
Fig. 143 Structure of MISRG .................................................................................................... 1-98
Fig. 144 System clock generating circuit block diagram (single-chip mode) ..................... 1-98
Fig. 145 State transitions of clock ........................................................................................... 1-99
Fig. 146 Block diagram of built-in flash memory ................................................................. 1-101
Fig. 147 Structure of flash memory control register ............................................................ 1-102