16
RL78/G1E
User’s Manual: Hardware
16-Bit Microcontrollers with Smart Analog IC
All information contained in these materials, including products and product specifications,
represents information on the product at the time of publication and is subject to change by
Renesas Electronics Corp. without notice. Please review the latest information published by
Renesas Electronics Corp. through various means, including the Renesas Electronics Corp.
website (http://www.renesas.com).
www.renesas.com
Rev.2.00 Mar 2014
Notice
1.
Descriptions of circuits, software and other related information in this document are provided only to illustrate the operation of
semiconductor products and application examples. You are fully responsible for the incorporation of these circuits, software,
and information in the design of your equipment. Renesas Electronics assumes no responsibility for any losses incurred by you
or third parties arising from the use of these circuits, software, or information.
Renesas Electronics has used reasonable care in preparing the information included in this document, but Renesas Electronics
does not warrant that such information is error free. Renesas Electronics assumes no liability whatsoever for any damages
incurred by you resulting from errors in or omissions from the information included herein.
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(2012.4)
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
RL78/G1E and design and develop application systems and programs for these devices.
The target products are as follows.
•
64-pin:
•
80-pin:
Purpose
R5F10FLx (x = C, D, E)
R5F10FMx (x = C, D, E)
This manual is intended to give users an understanding of the functions described in the
Organization
below.
Organization
The RL78/G1E manual is separated into three parts: this manual, RL78/G1A user’s manual,
and the RL78 family software user’s manual.
RL78/G1E
User’s Manual
(This Manual)
RL78/G1A
Hardware
User’s Manual
RL78 family
Software
User’s Manual
•
Pin functions
•
Internal block functions
•
On-chip peripheral
functions
•
Electrical specifications
•
Pin functions
•
Internal block functions
•
Interrupts
•
Other on-chip peripheral
functions
•
Electrical specifications
•
CPU functions
•
Instruction set
•
Explanation of each
instruction
How to Read This Manual
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 assembler, and is defined as an sfr variable using the #pragma sfr
directive in the compiler.
•
To know details of the microcontroller block:
→
Refer to the separate document
RL78/G1A Hardware User’s Manual (R01UH0305E).
•
To know details of the RL78 microcontroller instructions:
→
Refer
to
the separate document
RL78
family
User’s
Manual
Software
(R01US0015E).
Conventions
Data significance:
Note:
Caution:
Remark:
Higher digits on the left and lower digits on the right
Footnote for item marked with
Note
in the text
Information requiring particular attention
Active low representations:
×××
(overscore over pin and signal name)
Supplementary information
...
××××
or
××××B
Numerical representations: Binary
...
××××
Decimal
Hexadecimal
...
××××H
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