Connecting Flashpro Iii/Flashpro Iv - NEC 78K0/KD1 Series User Manual

25.2.3 Connecting Flashpro III/Flashpro IV

The connection between Flashpro III/Flashpro IV and the µ PD78F0124 differs depending on the communication
mode (3-wire serial I/O or UART). Figures 25-3 to 25-7 show the connection diagrams of each case.
Figure 25-3. Connection of Flashpro III/Flashpro IV in 3-Wire Serial I/O Mode
Flashpro III/Flashpro IV
Figure 25-4. Connection of Flashpro III/Flashpro IV in 3-Wire Serial I/O Mode (Using Handshake)
Flashpro III/Flashpro IV
Caution Be sure to connect the REGC pin of the µ µ µ µ PD78F0124 in either of the following two ways.
• • • • Connect to GND of Flashpro III/Flashpro IV via 0.1 µ µ µ µ F capacitor
• • • • Connect directly to VDD of Flashpro III/Flashpro IV
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CHAPTER 25 µ µ µ µ PD78F0124
VPP
VDD
RESET
SCK
SO
SI
GND
VPP
VDD
RESET
SCK
SO
SI
HS
GND
Preliminary User's Manual U16315EJ1V0UD
µ
PD78F0124
V
PP
V /EV /AV
DD DD REF
RESET
SCK10
SI10
SO10
V /EV /AV
SS SS SS
µ
PD78F0124
V
PP
V /EV /AV
DD DD REF
RESET
SCK10
SI10
SO10
HS (P15)
V /EV /AV
SS SS SS