Hitachi H8/3672 Series Hardware Manual page 12

13.8.4 Receive Data Sampling Timing and Reception Margin in Asynchronous Mode 192
Section 14 A/D Converter .................................................................................193
14.1 Features............................................................................................................................. 193
14.2 Input/Output Pins .............................................................................................................. 195
14.3 Register Description.......................................................................................................... 196
14.3.1 A/D Data Registers A to D (ADDRA to ADDRD) ............................................. 196
14.3.2 A/D Control/Status Register (ADCSR) ............................................................... 197
14.3.3 A/D Control Register (ADCR) ............................................................................ 198
14.4 Operation .......................................................................................................................... 199
14.4.1 Single Mode......................................................................................................... 199
14.4.2 Scan Mode ........................................................................................................... 199
14.4.3 Input Sampling and A/D Conversion Time ......................................................... 200
14.4.4 External Trigger Input Timing............................................................................. 201
14.5 A/D Conversion Precision Definitions.............................................................................. 202
14.6 Usage Notes ...................................................................................................................... 203
14.6.1 Permissible Signal Source Impedance ................................................................. 203
14.6.2 Influences on Absolute Precision......................................................................... 203
Section 15 Power Supply Circuit ......................................................................205
15.1 When Using the Internal Power Supply Step-Down Circuit............................................. 205
15.2 When Not Using the Internal Power Supply Step-Down Circuit...................................... 206
Section 16 Electrical Characteristics .................................................................207
16.1 Absolute Maximum Ratings ............................................................................................. 207
16.2 Electrical Characteristics................................................................................................... 207
16.2.1 Power Supply Voltage and Operating Ranges ..................................................... 207
16.2.2 DC Characteristics ............................................................................................... 209
16.2.3 AC Characteristics ............................................................................................... 214
16.2.4 A/D Converter Characteristics ............................................................................. 217
16.2.5 Watchdog Timer .................................................................................................. 218
16.2.6 Flash Memory Characteristics (Preliminary) ....................................................... 219
16.3 Operation Timing.............................................................................................................. 221
16.4 Output Load Circuit .......................................................................................................... 223
Appendix A Instruction Set ...............................................................................225
A.1 Instruction List .................................................................................................................. 225
A.2 Operation Code Map......................................................................................................... 240
A.3 Number of Execution States ............................................................................................. 243
A.4 Combinations of Instructions and Addressing Modes ...................................................... 250
Appendix B Internal I/O Registers ....................................................................251
B.1 Register Addresses............................................................................................................ 251
Rev. 2.0, 03/01, page
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