Hitachi H8/3937 Series Hardware Manual page 3

Preface
The H8/300L Series of single-chip microcomputers has the high-speed H8/300L CPU at its core,
with many necessary peripheral functions on-chip. The H8/300L CPU instruction set is
compatible with the H8/300 CPU.
The H8/3937 Series and H8/3937R Series include, a FLEX™ decoder*, five kinds of timers, a 2-
channel serial communication interface, and an A/D converter, as on-chip peripheral functions
necessary for system configuration. The configuration of these series makes them ideal for use as
embedded microcomputers in pagers using the FLEX™ decoder system.
The H8/3937 Series supports non-roaming, while the H8/3937R Series supports roaming.
This manual describes the hardware of the H8/3937 Series and H8/3937R Series. For details on
H8/3937 Series and 3937R Series instruction set, refer to the H8/300L Series Programming
Manual.
Note: * FLEX is a trademark of Motorola Inc.