upd70f3422gj-gae-qs-ax Renesas Electronics Corporation., upd70f3422gj-gae-qs-ax Datasheet - Page 244

• Manufacturer Part Number: upd70f3422gj-gae-qs-ax
• Description: 32-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

Chapter 6
244
Figure 6-11
6.4.4 Programming method
(1)
(2)
Flash memory control
The procedure to manipulate the flash memory is illustrated below.
Flash memory manipulation procedure
Flash memory programming mode
To rewrite the contents of the flash memory by using the flash programmer, set
the microcontroller in the flash memory programming mode.
To set this mode, set the FLMD0 and FLMD1 pins as shown in Table 6-3 and
release RESET.
The communication interface is chosen by applying a specified number of
pulses to the MODE pin after reset release. Note that this is handled by the
flash programmer.
Figure 6-12 gives an example how the UARTA0 is established for the
communication between the flash programmer and the microcontroller.
Preliminary User’s Manual U17566EE1V2UM00
Flash Memory