EKTF6708 datasheet(24/158 Pages) EMC

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eKTF6708

8-Bit Microcontroller



IC Product Specification (V1.2) 03.12.2020

(This specification is subject to change without prior notice)

6.1.4 R3: SR (Status Register)

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

INT

R/W

Bit 7 (INT): Interrupt Enable flag

0: Interrupt masked by DISI or hardware interrupt

1: Interrupt enabled by ENI/RETI instructions

Bit 6 (N): Negative flag.

The negative flag stores the state of the most significant bit of the output result

0: The result of the operation is not negative.

1: The result of the operation is negative.

Bit 5 (OV): Overflow flag.

OV is set when a two’s complement overflows occurs as a result of an operation

0: No overflow occurred.

1: Overflow occurred.

Bit 4 (T): Time-out bit.

Set to 1 with the "SLEP" and "WDTC" commands, or during power up and reset to 0 by

WDT time-out.

Bit 3 (P): Power down bit.

Set to 1 during power on or by a "WDTC" command and reset to 0 by a "SLEP" command.

Bit 2 (Z): Zero flag.

Set to "1" if the result of an arithmetic or logic operation is zero.

Bit 1 (DC): Auxiliary carry flag

Bit 0 (C): Carry or Borrow flag

C : C is set when a carry occurs and cleared when a borrow occurs during an arithmetic

operation. The Carry Flag bit is set or cleared, depending on the operation that is

performed.

For ADD, ADC, INC, INCA instructions

0: No carry occurs.

1: Carry occurs.

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