M34512M2 Datasheet, PDF (71/80 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

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MITSUBISHI MICROCOMPUTERS
4512 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
Skip condition
Datailed description
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– Transfers the high-order 8 bits of the contents of register AD to registers A and B.
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(ADF) = 1
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(P) = 1
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– Transfers the low-order 2 bits of the contents of register AD to the high-order 2 bits of the contents of regis-
ter A. Simultaneously, the low-order 2 bits of the contents of the register A is “0.”
– Transfers the contents of registers A and B to the comparator register at the comparator mode.
– Transfers the contents of the A-D control register Q1 to register A.
– Transfers the contents of register A to the A-D control register Q1.
– Clears the ADF flag, and the A-D conversion at the A-D conversion mode or the comparator operation at the
comparator mode is started.
– Skips the next instruction when the contents of ADF flag is “1”.
After skipping, clears (0) the contents of ADF flag.
– Transfers the contents of the A-D control register Q2 to register A.
– Transfers the contents of register A to the A-D control register Q2.
– No operation
– Puts the system in RAM back-up state by executing the POF instruction after executing the EPOF instruction.
– Makes the immediate POF instruction valid by executing the EPOF instruction.
– Skips the next instruction when P flag is “1”. After skipping, P flag remains unchanged.
– Operates the watchdog timer and initializes the watchdog timer flag WDF1.
– Transfers the contents of the clock control register MR to register A.
– Transfers the contents of register A to the clock control register MR.
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