CHAPTER 17
µ
PD78F9436, 78F9456
User’s Manual U15075EJ2V1UD
296
17.1.2 Communication mode
Use the communication mode shown in Table 17-2 to perform communication between the dedicated flash
programmer and
µ
PD78F9436 or 78F9456.
Table 17-2. Communication Mode List
TYPE Setting
Note 1
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-wire, sync.)
100 Hz to
1.25 MHz
Note 2
1, 2, 4, 5
MHz
Notes 2, 3
1 to 5 MHz
Note 2
1.0
SI20/RxD20/P25
SO20/TxD20/P24
SCK20/ASCK20/P23
0
UART
UART ch-0
(Async.)
4,800 to
76,800 bps
Notes 2, 4
5 MHz
Note 5
4.91 or
5 MHz
Note 2
1.0
RxD20/SI20/P25
TxD20/SO20/P24
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 20
ELECTRICAL SPECIFICATIONS
.
3.
2 or 4 MHz only for Flashpro III
4.
Because signal wave slew also affects UART communication, in addition to the baud rate error,
thoroughly evaluate the slew.
5.
Only for Flashpro IV. 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.
Figure 17-2. Communication Mode Selection Format
10 V
V
SS
V
DD
V
PP
V
DD
V
SS
RESET
1
2
n
V
PP
pulses