upd78f0124m6gba1-8et Renesas Electronics Corporation., upd78f0124m6gba1-8et Datasheet - Page 405
upd78f0124m6gba1-8et
Manufacturer Part Number
upd78f0124m6gba1-8et
Description
8-bit Single-chip Microcontrollers
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD78F0124M6GBA1-8ET.pdf
(545 pages)
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25.5 Connection of Pins on Board
the target system. First provide a function that selects the normal operation mode or flash memory programming
mode on the board.
the same status as immediately after reset. Therefore, if the external device does not recognize the state immediately
after reset, the pins must be connected as described below.
25.5.1 V
supplied to the V
(1) Connect pull-down resistor R
(2) Switch the input of the V
25.5.2 Serial interface pins
the board, care must be exercised so that signals do not collide or that the other device does not malfunction.
To write the flash memory on-board, connectors that connect the dedicated flash programmer must be provided on
When the flash memory programming mode is set, all the pins not used for programming the flash memory are in
In the normal operation mode, the V
The pins used by each serial interface are listed below.
To connect the dedicated flash programmer to the pins of a serial interface that is connected to another device on
PP
pin
PP
pin in the flash memory programming mode. Connect the pin as follows.
CSI10
CSI10 + HS
UART0
UART0 + HS
UART6
PP
µ
PD78F0124
pin to the programmer side by using a jumper on the board or to GND directly.
Figure 25-13. Example of Connection of V
VPP
Table 25-5. Pins Used by Each Serial Interface
Serial Interface
= 10 kΩ to the V
V
PP
PP
pin is connected to V
CHAPTER 25
User’s Manual U16315EJ3V1UD
Dedicated flash programmer connection pin
PP
Pull-down resistor (R
pin.
SO10, SI10, SCK10
SO10, SI10, SCK10, HS/P15
TxD0, RxD0
TxD0, RxD0, HS/P15
TxD6, RxD6
PD78F0124
SS
. In addition, a write voltage of 10.0 V (TYP.) is
Pins Used
VPP
)
PP
Pin
405
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