User’s Manual
8
78K0/Kx2-L
User’s Manual: Hardware
8-Bit Single-Chip Microcontrollers
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represents information on the product at the time of publication and is subject to change by
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www.renesas.com
Rev.4.00
Sep 2010
Notice
1.
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“Standard”:
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(Note 1) “Renesas Electronics” as used in this document means Renesas Electronics Corporation and also includes its majority-
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NOTES FOR CMOS DEVICES
(1) VOLTAGE APPLICATION WAVEFORM AT INPUT PIN: Waveform distortion due to input noise or a
reflected wave may cause malfunction. If the input of the CMOS device stays in the area between VIL
(MAX) and VIH (MIN) due to noise, etc., the device may malfunction. Take care to prevent chattering noise
from entering the device when the input level is fixed, and also in the transition period when the input level
passes through the area between VIL (MAX) and VIH (MIN).
(2) HANDLING OF UNUSED INPUT PINS: Unconnected CMOS device inputs can be cause of malfunction.
If an input pin is unconnected, it is possible that an internal input level may be generated due to noise, etc.,
causing malfunction. CMOS devices behave differently than Bipolar or NMOS devices. Input levels of
CMOS devices must be fixed high or low by using pull-up or pull-down circuitry. Each unused pin should be
connected to VDD or GND via a resistor if there is a possibility that it will be an output pin. All handling
related to unused pins must be judged separately for each device and according to related specifications
governing the device.
(3) PRECAUTION AGAINST ESD: A strong electric field, when exposed to a MOS device, can cause
destruction of the gate oxide and ultimately degrade the device operation. Steps must be taken to stop
generation of static electricity as much as possible, and quickly dissipate it when it has occurred.
Environmental control must be adequate. When it is dry, a humidifier should be used. It is recommended
to avoid using insulators that easily build up static electricity. Semiconductor devices must be stored and
transported in an anti-static container, static shielding bag or conductive material. All test and measurement
tools including work benches and floors should be grounded. The operator should be grounded using a
wrist strap. Semiconductor devices must not be touched with bare hands. Similar precautions need to be
taken for PW boards with mounted semiconductor devices.
(4) STATUS BEFORE INITIALIZATION: Power-on does not necessarily define the initial status of a MOS
device. Immediately after the power source is turned ON, devices with reset functions have not yet been
initialized. Hence, power-on does not guarantee output pin levels, I/O settings or contents of registers. A
device is not initialized until the reset signal is received. A reset operation must be executed immediately
after power-on for devices with reset functions.
(5) POWER ON/OFF SEQUENCE: In the case of a device that uses different power supplies for the internal
operation and external interface, as a rule, switch on the external power supply after switching on the internal
power supply. When switching the power supply off, as a rule, switch off the external power supply and then
the internal power supply. Use of the reverse power on/off sequences may result in the application of an
overvoltage to the internal elements of the device, causing malfunction and degradation of internal elements
due to the passage of an abnormal current. The correct power on/off sequence must be judged separately
for each device and according to related specifications governing the device.
(6) INPUT OF SIGNAL DURING POWER OFF STATE : Do not input signals or an I/O pull-up power supply
while the device is not powered. The current injection that results from input of such a signal or I/O pull-up
power supply may cause malfunction and the abnormal current that passes in the device at this time may
cause degradation of internal elements. Input of signals during the power off state must be judged
separately for each device and according to related specifications governing the device.
How to Use This Manual
Readers
This manual is intended for user engineers who wish to understand the functions of the
78K0/Kx2-L microcontrollers and design and develop application systems and programs for
these devices.
The target products are as follows.
•
78K0/KY2-L:
μ
PD78F0550, 78F0551, 78F0552, 78F0555, 78F0556, 78F0557
•
78K0/KA2-L:
μ
PD78F0560, 78F0561, 78F0562, 78F0565, 78F0566, 78F0567
•
78K0/KB2-L:
μ
PD78F0571, 78F0572, 78F0573, 78F0576, 78F0577, 78F0578
•
78K0/KC2-L:
μ
PD78F0581, 78F0582, 78F0583, 78F0586, 78F0587, 78F0588
Purpose
This manual is intended to give users an understanding of the functions described in the
Organization
below.
The manual for the 78K0/Kx2-L microcontrollers is separated into two parts: this manual
and the instructions edition (common to the 78K0 microcontrollers).
78K0/Kx2-L
User’s Manual
(This Manual)
•
•
•
•
•
How to Read This Manual
78K/0 Series
User’s Manual
Instructions
•
CPU functions
•
Instruction set
•
Explanation of each instruction
Organization
Pin functions
Internal block functions
Interrupts
Other on-chip peripheral functions
Electrical specifications
It is assumed that the readers of this manual have general knowledge of electrical
engineering, logic circuits, and microcontrollers.
•
To gain a general understanding of functions:
→
Read this manual in the order of the
CONTENTS.
The mark “<R>” shows major
revised points. The revised points can be easily searched by copying an “<R>” in the
PDF file and specifying it in the “Find what:” field.
•
How to interpret the register format:
→
For a bit number enclosed in angle brackets, the bit name is defined as a reserved
word in the RA78K0, and is defined as an sfr variable using the #pragma sfr directive
in the CC78K0.
•
When you know a register name and want to confirm its details:
→
Refer to
APPENDIX B REGISTER INDEX.
•
To know details of the 78K0 microcontroller instructions:
→
Refer to the separate document
78K/0 Series Instructions User’s Manual
(U12326E).
Conventions
Data significance:
Active low representations:
Note:
Caution:
Remark:
Numerical representations:
Higher digits on the left and lower digits on the right
×××
(overscore over pin and signal name)
Footnote for item marked with
Note
in the text
Information requiring particular attention
Supplementary information
...
××××
or
××××B
Binary
...
××××
Decimal
Hexadecimal ...
××××H
<R>
Related Documents
The related documents indicated in this publication may include preliminary versions.
However, preliminary versions are not marked as such.
Documents Related to Devices
Document Name
78K0/Kx2-L User’s Manual
78K0/Kx2-L Application Note Setting for Low Power Consumption Operation
78K/0 Series User’s Manual Instructions
78K0 Microcontrollers User’s Manual Self Programming Library Type 01
78K0 Microcontrollers Self Programming Library Type 01 Ver. 3.10 Operating Precautions (Notification
Document)
78K0 Microcontrollers User’s Manual EEPROM
™
Emulation Library Type 01
78K0 Microcontrollers EEPROM Emulation Library Type 01 Ver.2.10 Operating Precautions (Notification
Document)
U18275E
ZUD-CD-09-0165
Document No.
This manual
U19612E
U12326E
U18274E
ZUD-CD-09-0122
Documents Related to Development Tools (Hardware) (User’s Manual)
Document Name
QB-MINI2 On-Chip Debug Emulator with Programming Function
QB-Programmer Programming GUI
Operation
Document No.
U18371E
U18527E
Documents Related to Flash Memory Programming (User’s Manual)
Document Name
PG-FP5 Flash Memory Programmer
Document No.
U18865E
Caution
The related documents listed above are subject to change without notice. Be sure to use the latest
version of each document for designing.
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