NEC PD78F9488 Manuale Utente

 

 

User’s Manual  U15331EJ4V1UD 

Use the communication mode shown in Table 19-2 to perform communication between the dedicated flash 

programmer and 

µ

PD78F9488 or 78F9489. 

 

TYPE Setting

 

CPU Clock 

Communication 

Mode 

COMM 

PORT 

SIO Clock 

In Flashpro 

On Target Board 

Multiple  

Rate 

Pins Used 

Number of V

PP

Pulses 

3-wire serial I/O

 

SIO ch-0 
(3-wired, 
sync.)

 

SI20/RxD20/P22 
SO20/TxD20/P21 
SCK20/ASCK20/ 
P20 

0 

3-wire serial I/O 

with handshake

 

SIO ch-3 

+ handshake 

100 Hz to 
1.25 
MHz

 

1, 2, 4, 5 
MHz

 

1 to 5 MHz

 

1.0

 

SI20/RxD20/P22 

SO20/TxD20/P21 

SCK20/ASCK20/ 

P20 

P11 (HS)

 

3 

UART

 

UART ch-0 
(Async.)

 

4,800 to 
76,800 bps 

5 MHz

 

4.91 or  
5 MHz

 

1.0

 

RxD20/SI20/P22 
TxD20/SO20/P21

8 

 

Notes 1. Selection items for TYPE settings on the dedicated flash programmer (Flashpro III (part no. FL-PR3, 

PG-FP3)/Flashpro IV (part no. FL-PR4, PG-FP4)). 

 

2.  The possible setting range differs depending on the voltage. For details, refer to CHAPTER 22 

µ

PD789488, 78F9488, 789489, 78F9489). 

 

3.  Only 2 MHz or 4 MHz can be selected for Flashpro III. 

 

4. Because signal wave slew also affects UART communication, in addition to the baud rate error, 

thoroughly evaluate the slew. 

 

5.  Flashpro IV only.  However, when using Flashpro III, be sure to select the clock of the resonator on the 

board.  UART cannot be used with the clock supplied by Flashpro III. 

 

10 V

V

SS

V

DD

V

PP

V

DD

V

SS

RESET

1

2

n

V

PP

 pulses