REJ09B0325-0300
8
H8/3048B
Group
Hardware Manual
Renesas 8-Bit Single-Chip Microcomputer
H8 Family/H8/300H Series
H8/3048B
H8/3048F-ONE
HD6433048B
HD6433048BV
HD64F3048B
HD64F3048BV
Rev. 3.00
Revision Date: Sep 27, 2006
Keep safety first in your circuit designs!
1. Renesas Technology Corp. puts the maximum effort into making semiconductor products better and
more reliable, but there is always the possibility that trouble may occur with them. Trouble with
semiconductors may lead to personal injury, fire or property damage.
Remember to give due consideration to safety when making your circuit designs, with appropriate
measures such as (i) placement of substitutive, auxiliary circuits, (ii) use of nonflammable material or
(iii) prevention against any malfunction or mishap.
Notes regarding these materials
1. These materials are intended as a reference to assist our customers in the selection of the Renesas
Technology Corp. product best suited to the customer's application; they do not convey any license
under any intellectual property rights, or any other rights, belonging to Renesas Technology Corp. or
a third party.
2. Renesas Technology Corp. assumes no responsibility for any damage, or infringement of any third-
party's rights, originating in the use of any product data, diagrams, charts, programs, algorithms, or
circuit application examples contained in these materials.
3. All information contained in these materials, including product data, diagrams, charts, programs and
algorithms represents information on products at the time of publication of these materials, and are
subject to change by Renesas Technology Corp. without notice due to product improvements or
other reasons. It is therefore recommended that customers contact Renesas Technology Corp. or
an authorized Renesas Technology Corp. product distributor for the latest product information
before purchasing a product listed herein.
The information described here may contain technical inaccuracies or typographical errors.
Renesas Technology Corp. assumes no responsibility for any damage, liability, or other loss rising
from these inaccuracies or errors.
Please also pay attention to information published by Renesas Technology Corp. by various means,
including the Renesas Technology Corp. Semiconductor home page (http://www.renesas.com).
4. When using any or all of the information contained in these materials, including product data,
diagrams, charts, programs, and algorithms, please be sure to evaluate all information as a total
system before making a final decision on the applicability of the information and products. Renesas
Technology Corp. assumes no responsibility for any damage, liability or other loss resulting from the
information contained herein.
5. Renesas Technology Corp. semiconductors are not designed or manufactured for use in a device or
system that is used under circumstances in which human life is potentially at stake. Please contact
Renesas Technology Corp. or an authorized Renesas Technology Corp. product distributor when
considering the use of a product contained herein for any specific purposes, such as apparatus or
systems for transportation, vehicular, medical, aerospace, nuclear, or undersea repeater use.
6. The prior written approval of Renesas Technology Corp. is necessary to reprint or reproduce in
whole or in part these materials.
7. If these products or technologies are subject to the Japanese export control restrictions, they must
be exported under a license from the Japanese government and cannot be imported into a country
other than the approved destination.
Any diversion or reexport contrary to the export control laws and regulations of Japan and/or the
country of destination is prohibited.
8. Please contact Renesas Technology Corp. for further details on these materials or the products
contained therein.
Rev. 3.00 Sep 27, 2006 page ii of xxvi
General Precautions on Handling of Product
1. Treatment of NC Pins
Note: Do not connect anything to the NC pins.
The NC (not connected) pins are either not connected to any of the internal circuitry or are
used as test pins or to reduce noise. If something is connected to the NC pins, the
operation of the LSI is not guaranteed.
2. Treatment of Unused Input Pins
Note: Fix all unused input pins to high or low level.
Generally, the input pins of CMOS products are high-impedance input pins. If unused pins
are in their open states, intermediate levels are induced by noise in the vicinity, a pass-
through current flows internally, and a malfunction may occur.
3. Processing before Initialization
Note: When power is first supplied, the product’s state is undefined.
The states of internal circuits are undefined until full power is supplied throughout the
chip and a low level is input on the reset pin. During the period where the states are
undefined, the register settings and the output state of each pin are also undefined. Design
your system so that it does not malfunction because of processing while it is in this
undefined state. For those products which have a reset function, reset the LSI immediately
after the power supply has been turned on.
4. Prohibition of Access to Undefined or Reserved Addresses
Note: Access to undefined or reserved addresses is prohibited.
The undefined or reserved addresses may be used to expand functions, or test registers
may have been be allocated to these addresses. Do not access these registers; the system’s
operation is not guaranteed if they are accessed.
Rev. 3.00 Sep 27, 2006 page iii of xxvi
Rev. 3.00 Sep 27, 2006 page iv of xxvi
Preface
The H8/3048B Group is a series of high-performance microcontrollers that integrate system
supporting functions together with an H8/300H CPU core. In addition, the H8/3048F-ONE is
2
equipped with an on-chip emulator (E10T)* .
The H8/300H CPU has a 32-bit internal architecture with sixteen 16-bit general registers, and a
concise, optimized instruction set designed for speed. It can address a 16-Mbyte linear address
space.
The on-chip emulator (E10T)* has functions that allow it to emulate directly a microcontroller
mounted on the user board. This makes possible on-board program debugging.
2
The on-chip supporting functions include ROM, RAM, a 16-bit integrated timer unit (ITU), a
programmable timing pattern controller (TPC), a watchdog timer (WDT), a serial communication
interface (SCI), an A/D converter, a D/A converter, I/O ports, a direct memory access controller
(DMAC), a refresh controller, and other facilities. Of the two SCI channels, one has been
expanded to support the ISO/IEC7816-3 smart card interface. Functions have also been added to
reduce power consumption in battery-powered applications: individual modules can be placed in
standby, and the frequency of the system clock supplied to the chip can be divided down under
software control.
The address space is divided into eight areas. The data bus width and access cycle length can be
selected independently in each area, simplifying the connection of different types of memory.
Seven operating modes (modes 1 to 7) are provided, offering a choice of data bus width and
address space size.
With these features, the H8/3048B Group can be used to implement compact, high-performance
systems easily.
Versions with either flash memory (F-ZTAT™* ) or mask ROM as the on-chip ROM are
available. This enables users to respond quickly and flexibly to changing application specifications
from the initial production stage through full-scale volume production.
1
This manual describes the H8/3048B Group hardware. For information on H8/3048 Group
products, please refer to the H8/3048 Group Hardware Manual. For details of the instruction set,
refer to the H8/300H Series Programming Manual.
Notes: 1. F-ZTAT (Flexible ZTAT) is a trademark of Renesas Technology Corp.
2. An on-chip emulator (E10T) is not provided in the mask ROM version.
Rev. 3.00 Sep 27, 2006 page v of xxvi
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