2.7 Operation Mode ................................................................................................................................ 2-212.7.1 Overview............................................................................................................................. 2-212.7.2 Reset Status......................................................................................................................... 2-21Chapter 3 Clock Generator..................................................................................................... 3-13.1 Overview ............................................................................................................................................. 3-23.1.1 Functions............................................................................................................................... 3-23.1.2 Block Diagram...................................................................................................................... 3-23.2 Control Registers................................................................................................................................. 3-33.2.1 Clock Generator Control Register ........................................................................................ 3-33.2.2 PLL Control Registers .......................................................................................................... 3-33.2.3 Clock Control Registers........................................................................................................ 3-53.3 Operation............................................................................................................................................. 3-63.3.1 Internal Clock Supply ........................................................................................................... 3-63.3.2 Setup of Input Frequency...................................................................................................... 3-73.3.3 Connection Example of Oscillator........................................................................................ 3-73.3.4 Setup Example of Internal Clock.......................................................................................... 3-8Chapter 4 Bus Controller........................................................................................................ 4-14.1 Overview ............................................................................................................................................. 4-24.1.1 Functions............................................................................................................................... 4-24.1.2 Block Diagram...................................................................................................................... 4-24.2 Operation............................................................................................................................................. 4-34.2.1 Operation of Bus Controller ................................................................................................. 4-34.2.2 Internal ROM access control register ................................................................................... 4-54.2.3 Setup Example of Internal Clock.......................................................................................... 4-6Chapter 5 Interrupt Controller................................................................................................ 5-15.1 Overview ............................................................................................................................................. 5-25.1.1 Functions............................................................................................................................... 5-25.1.2 Block Diagram...................................................................................................................... 5-35.2 Control Registers................................................................................................................................. 5-75.2.1 Registers List ........................................................................................................................ 5-75.2.2 Processor Status Word .......................................................................................................... 5-95.2.3 Interrupt Vector Register .................................................................................................... 5-105.2.4 Non-Maskable Interrupt Control Register .......................................................................... 5-125.2.5 Group n Interrupt Control Registers ................................................................................... 5-135.2.6 Interrupt Accepted Group Register..................................................................................... 5-325.2.7 External Interrupt Condition Specification Register .......................................................... 5-33
