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HT67F60 датащи(PDF) 47 Page - Holtek Semiconductor Inc |
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HT67F60 датащи(HTML) 47 Page - Holtek Semiconductor Inc |
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47 / 242 page ![]() HT67F30/HT67F40/HT67F50/HT67F60 TinyPowerTM A/D Flash Type 8-Bit MCU with LCD & EEPROM Rev. 1.50 46 March 06 , 2012 Rev. 1.50 47 March 06 , 2012 ● STATUS Register Bit 7 6 5 4 3 2 1 0 Name — — TO PDF OV Z AC C R/W — — R R R/W R/W R/W R/W POR — — 0 0 x x x x “X” unknown Bit 7, 6 Unimplemented, read as “0” Bit 5 TO: Watchdog Time-Out flag 0: After power up or executing the “CLR WDT” or “HALT” instruction 1: A watchdog time-out occurred. Bit 4 PDF: Power down flag 0: After power up or executing the “CLR WDT” instruction 1: By executing the “HALT” instruction Bit 3 OV: Overflow flag 0: no overflow 1: an operation results in a carry into the highest-order bit but not a carry out of the highest-order bit or vice versa. Bit 2 Z: Zero flag 0: The result of an arithmetic or logical operation is not zeroT 1: The result of an arithmetic or logical operation is zero Bit 1 AC: Auxiliary flag 0: no auxiliary carry 1: an operation results in a carry out of the low nibbles in addition, or no borrow from the high nibble into the low nibble in subtraction Bit 0 C: Carry flag 0: no carry-out 1: an operation results in a carry during an addition operation or if a borrow does not take place during a subtraction operation C is also affected by a rotate through carry instruction. |
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