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The H8/3664 Series of single-chip microcomputers has the high-speed H8/300H CPU at its core,
with many necessary peripheral functions on-chip. The H8/300H CPU instruction set is
compatible with the H8/300 CPU.
The H8/3664 Series includes such peripheral functions as four timers, an I
communication interface, and a 10-bit A/D converter, so that they can be used as an embedded
microcomputer for a sophisticated control system.
This manual describes the hardware of the H8/3664 Series. For details on the H8/3664 Series
instruction set, refer to the H8/300H Series Programming Manual.
Notes:
When using an on-chip emulator (E10T) for H8/3664 program development and debugging, the
following restrictions must be noted.
1. The NMI pin is reserved for the E10T, and cannot be used.
2. Pins P85, P86, and P87 cannot be used. (In order to use these pins, additional hardware must
be provided on the user board.)
3. Area H'7000 to H'7FFF is used by the E10T, and is not available to the user.
4. Area H'F780 to H'FB7F must on no account be accessed.
5. When the E10T is used, address breaks can be set as available to the user, or for use by the
E10T. If address breaks are set as being used by the E10T, the address break control registers
must not be accessed.
6. When the E10T is used, NMI is an input/output pin (open-drain in output mode), P85 and P87
are input pins, and P86 is an output pin.
Preface
2
C bus interface, a serial
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