Writing With Flash Programmer - NEC 78K0 User Manual

28.3 Writing with Flash Programmer

Data can be written to the flash memory on-board or off-board, by using a dedicated flash programmer.
(1) On-board programming
The contents of the flash memory can be rewritten after the
system. The connectors that connect the dedicated flash programmer must be mounted on the target system.
(2) Off-board programming
Data can be written to the flash memory with a dedicated program adapter (FA series) before the
mounted on the target system.
Remark The FA series is a product of Naito Densei Machida Mfg. Co., Ltd.
Table 28-4. Wiring Between
(1) 3-wire serial I/O (CSI10)
Pin Configuration of Dedicated Flash Programmer
Signal Name I/O
SI/RxD Input Receive signal
SO/TxD Output Transmit signal
SCK Output Transfer clock
Clock to
CLK Output
/RESET Output Reset signal
V Output Write voltage
PP
H/S Input Handshake signal
V I/O V voltage generation/voltage
DD DD
monitor
−
GND Ground
Notes 1. When using the clock out of the flash programmer, connect CLK of the programmer to X1, and connect
its inverse signal to X2.
2. Flashpro III only
Cautions 1. Be sure to connect the REGC pin in either of the following ways.
• To GND via a 1
• Directly to V
2. When connecting the REGC pin to GND via a 1
from the CLK pin of the flash programmer.
Create an oscillator on the board to supply a clock.
498
CHAPTER 28
µ
PD78F0148 and Dedicated Flash Programmer (1/2)
Pin Function
SO10/P12
SI10/RxD0/P11
SCK10/TxD0/P10
µ
PD78F0148
X1
X2
RESET
V
Not needed
V
Note 2
EV
AV
V
EV
AV
µ
F capacitor
DD
User's Manual U15947EJ2V0UD
µ
PD78F0148
µ
PD78F0148 has been mounted on the target
With CSI10
Pin Name Pin No.
20
19
18
12
*
Note 1
13
14
8
PP
Not needed
9
DD
31
DD
1
REF
11
SS
30
SS
2
SS
µ
F capacitor, the clock cannot be supplied
µ
PD78F0148 is
With CSI10 + HS
Pin Name Pin No.
SO10/P12 20
SI10/RxD0/P11 19
SCK10/TxD0/P10 18
X1 12
Note 1
X2 13
RESET 14
V 8
PP
HS/P15/TOH0 23
V 9
DD
EV 31
DD
AV 1
REF
V 11
SS
EV 30
SS
AV 2
SS