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EU1020 Datasheet(PDF) 8 Page - Eorex Corporation |
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EU1020 Datasheet(HTML) 8 Page - Eorex Corporation |
8 / 22 page eorex EU1020 Dec.2009 www.eorex.com 8/22 TMRC register *TMRC.0(RTCF) : real time counter transient flag. Once TRTC signal is transient, this flag will be set as RTCF=1 by hardware. This bit could be cleared by software. *TMRC.1(RTCEN) : real time counter enable/disable flag. RTCEN = 1, enable real time counter; RTCEN = 0, disable real time counter. *TMRC.2(TBF) : base timer transient flag. Once TBASE signal is transient, this flag will be set as TBF=1 by hardware. This bit could be cleared by software. *TMRC.3(TBEN) : Base timer enable/disable flag. TBEN = 1, enable base timer; TBEN = 0, disable base timer. Watchdog Timer Watchdog timer block diagram is shown as figure_B. The clock source comes from CPU system clock. Figure_B Note: *Once TMRC.5 (WDTEN) is set as “1”, the watchdog timer will start to count till the watchdog timer overflows, and then the TMRC.4 (WDTF) is set as “1”. Meanwhile, CPU will have a warm reset by hardware and the data in addresses $2FFCH and $2FFDH will be loaded into program counter. Watchdog timer can be cleared by setting TMRC.5 (WDTEN=0). Please note well that the EU1020 watchdog timer is preset as disable after power on reset. Once watchdog timer is enabled by setting TMRC.5=1, watchdog timer won’t be stopped by software. Set TMRC.5=0 will just clear watchdog timer counter. Address 01H Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 NAME TMRC WDT Divide WDTEN WDTF TBEN TBF RTCEN RTCF Read or Write W W R/W R/W R/W R/W R/W R/W Default Value 0 0 0 # 0 # 0 # |
Similar Part No. - EU1020_15 |
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Similar Description - EU1020_15 |
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