M34512M2 Datasheet, PDF (69/80 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

PRELIMINARY _{NSocothimcaene:gpTeah.riasmisetnrioct} ^{laimfiintsalasrepescuibfijceacttioton.}
MITSUBISHI MICROCOMPUTERS
4512 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
Skip condition
Datailed description
–
–
–
–
–
–
–
–
(D(Y)) = 0
(Y) = 0 to 7
– 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 register A.
– 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.”
–
–
–
–
–
–
–
–
–
(SIOF) = 1
– Transfers the contents of register A to key-on wakeup control register K0.
– Transfers the contents of key-on wakeup control register K0 to register A.
– Transfers the contents of register A to pull-up control register PU0.
– Transfers the contents of pull-up control register PU0 to register A.
– Transfers the contents of serial I/O register SI to registers A and B.
– Transfers the contents of registers A and B to serial I/O register SI.
– Transfers the contents of serial I/O mode register J1 to register A.
– Transfers the contents of register A to serial I/O mode register J1.
– Clears (0) to SIOF flag and starts serial I/O.
– Skips the next instruction when the contents of SIOF flag is “1.”
After skipping, clears (0) to SIOF flag.
69