upd70f3422gj-gae-qs-ax Renesas Electronics Corporation., upd70f3422gj-gae-qs-ax Datasheet - Page 242
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upd70f3422gj-gae-qs-ax
Manufacturer Part Number
upd70f3422gj-gae-qs-ax
Description
32-bit Single-chip Microcontroller
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD70F3422GJ-GAE-QS-AX.pdf
(930 pages)
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Chapter 6
242
Figure 6-10
Table 6-3
6.4.3 Pin connection
(1)
A connector must be mounted on the target system to connect the flash
programmer for on-board writing. In addition, a function to switch between the
normal operation mode and flash memory programming mode must be
provided on the board.
When the flash memory programming mode is set, all the pins not used for
flash memory programming are in the same status as immediately after reset.
Connection to flash programmer
In the normal operation mode, 0 V is input to the FLMD0 pin. The pull-down
resistor at the FLMD0 pin ensures normal operation mode if no flash
programmer is connected. In the flash memory programming mode, the V
write voltage is supplied to the FLMD0 pin. Additionally the FLMD1 pin, shared
with port P07, has to hold 0 V level.
An example of connection of the FLMD0 and FLMD1 pins is shown below.
Alternatively the FLMD1 pin may also be connected directly to the FLMD1
signal of the flash programmer.
Operation mode setting
Example of connection to flash programmer PG-FP4
Preliminary User’s Manual U17566EE1V2UM00
FLMD0
0
1
Pins
PG-FP4
PG-FP4
FLMD1 (P07)
FLMD0
FLMD1
FLMD0
FLMD1
X
0
1
Operation mode
Normal operation mode (fetch from flash)
Flash programming mode
Setting prohibited
µPD70F34xx
µPD70F34xx
FLMD0
FLMD1
FLMD0
FLMD1
Flash Memory
DD
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