RL78/F13, F14 CHAPTER 30 FLASH MEMORY
R01UH0368EJ0210 Rev.2.10 1632
Dec 10, 2015
30.3.3 Port pins
When the flash memory programming mode is set, all the pins not used for flash memory programming enter the same
status as that immediately after reset. If external devices connected to the ports do not recognize the port status immediately
after reset, the port pin must be connected to either to V
DD, EVDD0
Note1
, or EVDD1
Note2
, or VSS, EVSS0
Note 1
, or EVSS1
Note 2
, via
a resistor.
Notes 1. 64, 80, 100-pin products only.
2. 100-pin products only.
30.3.4 REGC pin
Connect the REGC pin to GND via a capacitor (0.47 to 1
F) in the same manner as during normal operation. Also, use
a capacitor with good characteristics, since it is used to stabilize internal voltage.
30.3.5 X1 and X2 pins
Connect X1 and X2 in the same status as in the normal operation mode.
Remark In the flash memory programming mode, the high-speed on-chip oscillator clock (f
IH) is used.
30.3.6 Power supply
To use the supply voltage output of the flash memory programmer, connect the V
DD pin to VDD of the flash memory
programmer, and the V
SS pin to GND of the flash memory programmer.
To use the on-board supply voltage, connect in compliance with the normal operation mode.
However, when writing to the flash memory by using the flash memory programmer and using the on-board supply voltage,
be sure to connect the V
DD and VSS pins to VDD and GND of the flash memory programmer to use the power monitor function
with the flash memory programmer.
To Next Page
Loading...
Need help?
General
