Selects One of Two 4-Bit Data Sources |

and Stores Data Synchronously with |

System Clock |

Applications: |

Dual Source for Operands and Constants |

in Arithmetic Processor; Can Release |

Processor Register Files for Acquiring New |

Data |

Implement Separate Registers Capable of |

Parallel Exchange of Contents Yet Retain |

External Load Capability |

Universal Type Register for implementing |

Various Shift Patterns; Even Has Compound |

Left-Right Capabilities |