Flash Memory Programming Mode - NEC V850E/RS1 User Manual

21.8.2 Flash memory programming mode

To rewrite the contents of the flash memory by using the dedicated flash programmer, set the
V850E/RS1 in the flash memory programming mode.
To set the mode, set the FLMD0 and FLMD1 pins, and release reset.
Change the mode by using a jumper when performing on-board writing.
RESET (input)
FLMD1 (input)
FLMD0 (input)
RXDA0 (input)
TXDA0 (output)
Note: The number of clocks to be inserted differs depending on the communication mode. For details,
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Figure 21-13: Flash Memory Programming Mode
V
DD
V
DD
0 V
V
DD
0 V
V
DD
0 V
V
DD
0 V
V
DD
0 V
V
DD
0 V
Power
supply
ON
refer to Table 21-4, "List of Communication Modes," on page 764.
User's Manual U16702EE3V2UD00
Chapter 21 Flash Memory
(Note)
Oscillation Communication
stabilized mode selection
Reset
Flash control command communication
(such as erase and write)
763