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■Organization of This Manual
This manual consists of 16 chapters and an appendix.
Chapter 1 Overview
Chapter 1 provides basic general information on the MB91F1 09, inc ludi ng its c haracter istic s,
a block diagram, and function overview.
Chapter 2 CPU
Chapter 2 provides basic information on the FR series CPU core functions inc luding the
architecture, specifications, and instructions.
Chapter 3 Clock Generator and Controller
Chapter 3 provides detailed information on the generation and con trol of the clock that
controls the MB91F109.
Chapter 4 Bus Interface
Chapter 4 explains the basic items of the external bus i nterface, register configur ation and
functions, bus operations, bus timing, and provides bus ope ration program samples.
Chapter 5 I/O Ports
Chapter 5 provides an overview of I/O ports, explains the I/O port register configur ation and
the conditions for using external terminals as I/O ports.
Chapter 6 External Interrupt/NMI Controller
Chapter 6 provides an overview of the external interrupt/NMI controller, explains the re gister
configuration and functions, and operations of the external interrupt/NMI controller.
Chapter 7 Delayed Interrupt Module
Chapter 7 provides an overview of the delayed interrupt module, explains the register
configuration and functions, and operations of the delayed i nterrupt module.
Chapter 8 Interrupt Controller
Chapter 8 provides an overview of the interrupt controller, ex plains the register configur ation
and functions, and operations of the interrupt controll er. The chapter al so explains th e hold
request cancel request function using examples.
Chapter 9 U-TIMER
Chapter 9 provides an overview of the U-TIMER, explains the register configuration and
functions, and operations of the U-TIMER.
Chapter 10 UART
Chapter 10 provides an overview of the UART, explains the register configur ation and
functions, and operations of the UART.
Chapter 11 A/D Converter (Successive Approximation Type)
Chapter 11 provides an overview of the A/D converter, explains the regist er configuration
and functions, and operations of the A/D converter.
Chapter 12 16-bit Reload Timer
Chapter 12 provides an overview of the 16-bit reload timer, explains the register
configuration and functions, and operations of the 16-bit r eload timer.
Chapter 13 Bit Search Module
Chapter 13 provides an overview of the bit search m odule, explains the register configuration
and functions, and operations and save/restore processing o f the bit search module.