Rev. 1.00 Mar. 12, 2008 Page xv of xIviii
11.2.1
Timer Counter (TCNT)......................................................................................... 394
11.2.2
Time Constant Register A (TCORA).................................................................... 395
11.2.3
Time Constant Register B (TCORB) .................................................................... 395
11.2.4
Timer Control Register (TCR).............................................................................. 396
11.2.5
Timer Control/Status Register (TCSR)................................................................. 399
11.2.6
Timer Connection Register S (TCONRS)............................................................. 403
11.3
Operation Timing............................................................................................................... 404
11.3.1
TCNT Count Timing ............................................................................................ 404
11.3.2
Timing of CMFA and CMFB Setting at Compare-Match .................................... 404
11.3.3
Timing of Counter Clear at Compare-Match ........................................................ 405
11.3.4
Timing of Overflow Flag (OVF) Setting .............................................................. 405
11.4
TMR_0 and TMR_1 Cascaded Connection ....................................................................... 406
11.4.1
16-Bit Count Mode ............................................................................................... 406
11.4.2
Compare-Match Count Mode ............................................................................... 406
11.5
Interrupt Sources................................................................................................................ 407
11.6
Usage Notes ....................................................................................................................... 408
11.6.1
Conflict between TCNT Write and Counter Clear................................................ 408
11.6.2
Conflict between TCNT Write and Increment...................................................... 409
11.6.3
Conflict between TCOR Write and Compare-Match............................................ 410
11.6.4
Switching of Internal Clocks and TCNT Operation.............................................. 411
11.6.5
Mode Setting with Cascaded Connection ............................................................. 412
Section 12 Watchdog Timer (WDT)..................................................................413
12.1
Features.............................................................................................................................. 413
12.2
Input/Output Pins ............................................................................................................... 415
12.3
Register Descriptions ......................................................................................................... 415
12.3.1
Timer Counter (TCNT)......................................................................................... 415
12.3.2
Timer Control/Status Register (TCSR)................................................................. 416
12.4
Operation ........................................................................................................................... 420
12.4.1
Watchdog Timer Mode ......................................................................................... 420
12.4.2
Interval Timer Mode ............................................................................................. 422
12.4.3
RESO
Signal Output Timing ................................................................................ 423
12.5
Interrupt Sources................................................................................................................ 424
12.6
Usage Notes ....................................................................................................................... 425
12.6.1
Notes on Register Access...................................................................................... 425
12.6.2
Conflict between Timer Counter (TCNT) Write and Increment........................... 426
12.6.3
Changing Values of CKS2 to CKS0 Bits.............................................................. 426
12.6.4
Changing Value of PSS Bit................................................................................... 426
12.6.5
Switching between Watchdog Timer Mode and Interval Timer Mode................. 427
12.6.6
System Reset by
RESO
Signal ............................................................................. 427
Summary of Contents for H8S Family
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Page 70: ...Section 1 Overview Rev 1 00 Mar 12 2008 Page 22 of 1178 REJ09B0403 0100...
Page 108: ...Section 2 CPU Rev 1 00 Mar 12 2008 Page 60 of 1178 REJ09B0403 0100...
Page 116: ...Section 3 MCU Operating Modes Rev 1 00 Mar 12 2008 Page 68 of 1178 REJ09B0403 0100...
Page 152: ...Section 5 Interrupt Controller Rev 1 00 Mar 12 2008 Page 104 of 1178 REJ09B0403 0100...
Page 206: ...Section 6 Bus Controller BSC Rev 1 00 Mar 12 2008 Page 158 of 1178 REJ09B0403 0100...
Page 420: ...Section 9 14 Bit PWM Timer PWMX Rev 1 00 Mar 12 2008 Page 372 of 1178 REJ09B0403 0100...
Page 476: ...Section 12 Watchdog Timer WDT Rev 1 00 Mar 12 2008 Page 428 of 1178 REJ09B0403 0100...
Page 552: ...Section 14 CRC Operation Circuit CRC Rev 1 00 Mar 12 2008 Page 504 of 1178 REJ09B0403 0100...
Page 712: ...Section 18 I2 C Bus Interface IIC Rev 1 00 Mar 12 2008 Page 664 of 1178 REJ09B0403 0100...
Page 804: ...Section 19 LPC Interface LPC Rev 1 00 Mar 12 2008 Page 756 of 1178 REJ09B0403 0100...
Page 838: ...Section 20 Ethernet Controller EtherC Rev 1 00 Mar 12 2008 Page 790 of 1178 REJ09B0403 0100...
Page 964: ...Section 24 RAM Rev 1 00 Mar 12 2008 Page 916 of 1178 REJ09B0403 0100...
Page 1066: ...Section 25 Flash Memory Rev 1 00 Mar 12 2008 Page 1018 of 1178 REJ09B0403 0100...
Page 1098: ...Section 26 Boundary Scan JTAG Rev 1 00 Mar 12 2008 Page 1050 of 1178 REJ09B0403 0100...
Page 1226: ...Rev 1 00 Mar 12 2008 Page 1178 of 1178 REJ09B0403 0100...
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Page 1230: ...H8S 2472 Group H8S 2462 Group Hardware Manual...