RL78/G13 CHAPTER 25 FLASH MEMORY
R01UH0146EJ0100 Rev.1.00 942
Sep 22, 2011
Table 25-4. Relationship Between TOOL0 Pin and Operation Mode After Reset Release
TOOL0 Operation Mode
VDD Normal operation mode
0 Flash memory programming mode
There are two flash memory programming modes for which the voltage range in which to write, erase, or verify data
differs.
Table 25-5. Programming Modes and Voltages at Which Data Can Be Written, Erased, or Verified
Mode Voltages at which data can be written, erased, or verified
Wide voltage mode 1.8 V to 5.5 V
2.4 V to 5.5 V
Full speed mode
Note
2.7 V to 5.5 V
Note This can only be specified if the CMODE1 and CMODE0 bits of the option byte 000C2H are 1.
Specify the mode that corresponds to the voltage range in which to write data. When programming by using the
dedicated flash memory programmer, the mode is automatically selected by the voltage setting on GUI.
Remarks 1. Using both the wide voltage mode and full speed mode imposes no restrictions on writing,
deletion, or verification.
2. For details about communication commands, see 25.5.4 Communication commands.
25.5.3 Selecting communication mode
Communication mode of the RL78/G13 as follows.
Table 25-6. Communication Modes
Standard Setting
Note 1
Communication
Mode
Port Speed
Note 2
Frequency Multiply Rate
Pins Used
1-line mode
(when flash
memory
programmer is
used)
UART 115200 bps,
250000 bps,
500000 bps,
1 Mbps
− −
TOOL0
Dedicated UART
(when external
device is used)
UART 115200 bps,
250000 bps,
500000 bps,
1 Mbps
− −
TOOLTxD,
TOOLRxD
Notes 1. Selection items for Standard settings on GUI of the flash memory programmer.
2. Because factors other than the baud rate error, such as the signal waveform slew, also affect UART
communication, thoroughly evaluate the slew as well as the baud rate error.
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