HD64F7018X20 Просмотр технического описания (PDF) - Renesas Electronics
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HD64F7018X20 Datasheet PDF : 431 Pages
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10.2 Register Descriptions......................................................................................................... 180
10.2.1 Compare Match Timer Start Register (CMSTR) ................................................. 180
10.2.2 Compare Match Timer Control/Status Register (CMCSR).................................. 181
10.2.3 Compare Match Timer Counter (CMCNT).......................................................... 182
10.2.4 Compare Match Timer Constant Register (CMCOR).......................................... 183
10.3 Operation ........................................................................................................................... 183
10.3.1 Period Count Operation........................................................................................ 183
10.3.2 CMCNT Count Timing ........................................................................................ 184
10.4 Interrupts............................................................................................................................ 184
10.4.1 Interrupt Sources .................................................................................................. 184
10.4.2 Compare Match Flag Set Timing ......................................................................... 184
10.4.3 Compare Match Flag Clear Timing...................................................................... 185
10.5 Notes on Use...................................................................................................................... 186
10.5.1 Contention between CMCNT Write and Compare Match ................................... 186
10.5.2 Contention between CMCNT Word Write and Incrementation .......................... 187
10.5.3 Contention between CMCNT Byte Write and Incrementation ............................ 188
Section 11 Watchdog Timer (WDT).............................................................................. 189
11.1 Overview............................................................................................................................ 189
11.1.1 Features ................................................................................................................ 189
11.1.2 Block Diagram...................................................................................................... 190
11.1.3 Register Configuration ......................................................................................... 191
11.2 Register Descriptions......................................................................................................... 191
11.2.1 Timer Counter (TCNT) ........................................................................................ 191
11.2.2 Timer Control/Status Register (TCSR) ................................................................ 192
11.2.3 Reset Control/Status Register (RSTCSR) ............................................................ 193
11.2.4 Register Access .................................................................................................... 194
11.3 Operation ........................................................................................................................... 195
11.3.1 Watchdog Timer Mode ........................................................................................ 195
11.3.2 Interval Timer Mode ............................................................................................ 197
11.3.3 Clearing the Standby Mode.................................................................................. 197
11.3.4 Timing of Setting the Overflow Flag (OVF)........................................................ 198
11.3.5 Timing of Setting the Watchdog Timer Overflow Flag (WOVF)........................ 198
11.4 Notes on Use...................................................................................................................... 199
11.4.1 TCNT Write and Increment Contention............................................................... 199
11.4.2 Changing CKS2 to CKS0 Bit Values................................................................... 199
11.4.3 Changing between Watchdog Timer/Interval Timer Modes................................ 199
11.4.4 Internal Reset With the Watchdog Timer ............................................................ 199
Section 12 Serial Communication Interface (SCI1) .................................................. 201
12.1 Overview............................................................................................................................ 201
12.1.1 Features ................................................................................................................ 201
12.1.2 Block Diagram...................................................................................................... 202
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