455A Datasheet, PDF (129/148 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

455A Group
Skip condition
Detailed description
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− Clears (0) to interrupt enable flag INTE, and disables the interrupt.
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− Sets (1) to interrupt enable flag INTE, and enables the interrupt.
V10 = 0 : (EXF0) = 1
(INT) = “L”
However, I12 = 0
(INT) = “H”
However, I12 = 1
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− When V10 = 0 : Clears (0) to the EXF0 flag and skips the next instruction when external 0 interrupt request
flag EXF0 is “1”. When the EXF0 flag is “0”, executes the next instruction.
When V10 = 1 : This instruction is equivalent to the NOP instruction. (V10: bit 0 of interrupt control register
V1)
− When I12 = 0 : Skips the next instruction when the level of INT pin is “L”. Executes the next instruction when
the level of INT0 pin is “H”.
When I12 = 1 : Skips the next instruction when the level of INT pin is “H”. Executes the next instruction when
the level of INT0 pin is “L”. (I12: bit 2 of interrupt control register I1)
− Transfers the contents of interrupt control register V1 to register A.
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− Transfers the contents of register A to interrupt control register V1.
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− Transfers the contents of interrupt control register V2 to register A.
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− Transfers the contents of register A to interrupt control register V2.
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− Transfers the contents of interrupt control register I1 to register A.
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− Transfers the contents of register A to interrupt control register I1.
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− Transfers the contents of register A (A0) to timer control register PA.
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− Transfers the contents of timer control register W1 to register A.
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− Transfers the contents of register A to timer control register W1.
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− Transfers the contents of timer control register W2 to register A.
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− Transfers the contents of register A to timer control register W2.
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− Transfers the contents of timer control register W3 to register A.
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− Transfers the contents of register A to timer control register W3.
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− Transfers the contents of timer control register W4 to register A.
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− Transfers the contents of register A to timer control register W4.
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− Transfers the contents of timer control register W5 to register A.
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− Transfers the contents of register A to timer control register W5.
Rev.1.01 Feb 15, 2008 Page 129 of 146
REJ03B0224-0101