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MB90580C Datasheet(PDF) 43 Page - Fujitsu Component Limited. |
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MB90580C Datasheet(HTML) 43 Page - Fujitsu Component Limited. |
43 / 110 page MB90580C Series 43 3. Watchdog Timer The watchdog timer consists of a 2-bit watchdog counter using carry signals from the 18-bit time-base timer as the clock source, a control register, and a watchdog reset control section. (1) Register configuration (2) Block Diagram • Watchdog timer control register bit 76543210 Address : 0000A8H PONR STBR WRST ERST SRST WTE WT1 WT0 WDTC Access (R) (R) (R) (R) (R) (W) (W) (W) Initial value (X) (X) (X) (X) (X) (1) (1) (1) TBTC PONR STBR WRST ERST SRST TBC0 TBR TBIE TBOF TBC1 WT1 WT0 WTE WTC WDCS SCE WTC2 WTC1 WTC0 WTR WTIE WTOF WDTC WDTC AND CLR OF CLR 212 214 216 219 TBTRES 29 210 211 212 213 214 215 WTRES 211 213 215 218 210 213 214 215 QR S AND Q R S AND Q R S Time-base interrupt Clock interrupt Selector Selector Selector Main clock Clock input Time-base timer Watchdog reset generator 2-bit counter Clock timer Clock input To WDGRST internal reset generator From power-on reset generator Subclock From RST bit in STBYC register From RST pin From hardware standby control circuit |
Similar Part No. - MB90580C |
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Similar Description - MB90580C |
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