CHAPTER 14
µµµµ
PD78F9801
User’s Manual U12978EJ3V0UD
193
Figure 14-3. Example of Connection with Dedicated Flash Programmer
(a)
3-wire serial I/O
Dedicated flash programmer
VPP1
VDD
RESET
SCK
SO
SI
CLK
Note
GND
V
PP
V
DD0
, V
DD1
RESET
SCK10
SI10
SO10
X1
V
SS0
, V
SS1
PD78F9801
µ
(b)
Pseudo-3-wire
Dedicated flash programmer
VPP1
VDD
RESET
SCK
SO
SI
GND
V
PP
V
DD0
, V
DD1
RESET
P10
P12
P11
CLK
Note
X1
V
SS0
, V
SS1
PD78F9801
µ
Note
Connect this pin when the system clock is supplied from the dedicated flash programmer. If a resonator is
already connected to the X1 pin, the CLK pin does not need to be connected.
Caution
The V
DD
pin, if already connected to the power supply, must be connected to the VDD pin of the
dedicated flash programmer. When using the power supply connected to the V
DD
pin, supply
voltage before starting programming.