4524 Datasheet, PDF (145/161 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

4524 Group
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Datailed description
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– Transfers the contents of key-on wakeup control register K0 to register A.
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– Transfers the contents of register A to key-on wakeup control register K0 .
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– Transfers the contents of key-on wakeup control register K1 to register A.
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– Transfers the contents of register A to key-on wakeup control register K1.
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– Transfers the contents of key-on wakeup control register K2 to register A.
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– Transfers the contents of register A to key-on wakeup control register K2.
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– Transferts the contents of register A to port output format control register FR0.
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– Transferts the contents of register A to port output format control register FR1.
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– Transferts the contents of register A to port output format control register FR2.
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– Transferts the contents of register A to port output format control register FR3.
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– Transfers the contents of LCD control register L1 to register A.
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– Transfers the contents of register A to LCD control register L1.
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– Transfers the contents of register A to LCD control register L2.
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– Transfers the high-order 4 bits of serial I/O register SI to register B, and transfers the low-order 4 bits of se-
rial I/O register SI to register A.
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– Transfers the contents of register B to the high-order 4 bits of serial I/O register SI, and transfers the con-
tents of register A to the low-order 4 bits of serial I/O register SI.
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– Clears (0) to SIOF flag and starts serial I/O.
V23 = 0: (SIOF) = 1
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– Skips the next instruction when the contents of bit 3 (V23) of interrupt control register V2 is “0” and contents
of SIOF flag is “1.” After skipping, clears (0) to SIOF flag.
– Transfers the contents of serial I/O control register J1 to register A.
– Transfers the contents of register A to serial I/O control register J1.
– Selects the ceramic resonator for main clock, stops the on-chip oscillator (internal oscillator).
– Selects the RC oscillation circuit for main clock, stops the on-chip oscillator (internal oscillator).
– Transfers the contents of clock control regiser MR to register A.
– Transfers the contents of register A to clock control register MR.
Rev.2.00 Jul 27, 2004 page 145 of 159
REJ03B0091-0200Z