4559 Datasheet, PDF (133/148 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

4559 Group
Skip condition
Detailed description
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(D(Y)) = 0
Y = 0 to 4
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− Transfers the input of port P0 to register A.
− Outputs the contents of register A to port P0.
− Transfers the input of port P1 to register A.
− Outputs the contents of register A to port P1.
− Transfers the input of port P2 to the register A.
− Outputs the contents of the register A to port P2.
− Transfers the input of port P3 to the register A.
− Outputs the contents of the register A to port P3.
− Sets (1) to port D.
− Clears (0) to a bit of port D specified by register Y.
− Sets (1) to a bit of port D specified by register Y.
− Skips the next instruction when a bit of port D specified by register Y is “0”. Executes the next instruction
when a bit of port D specified by register Y is “1”.
− Clears (0) to port C.
− Sets (1) to port C.
− Transfers the contents of register A to port output structure control register FR0.
− Transfers the contents of register A to port output structure control register FR1.
− Transfers the contents of register A to port output structure control register FR2.
− Transfers the contents of register A to port output structure control register FR3.
− Transfers the contents of pull-up control register PU0 to register A.
− Transfers the contents of register A to pull-up control register PU0.
− Transfers the contents of pull-up control register PU1 to register A.
− Transfers the contents of register A to pull-up control register PU1.
− Transfers the contents of pull-up control register PU2 to register A.
− Transfers the contents of register A to pull-up control register PU2.
− Transfers the contents of pull-up control register PU3 to register A.
− Transfers the contents of register A to pull-up control register PU3.
Rev.1.04 Aug 23, 2007 Page 133 of 146
REJ03B0188-0104