NEC Flash Memory Programmer PG-FP3 User Manual page 52

Entering a clock frequency in 3-wire or pseudo 3-wire mode (SIO CLOCK)
If 3-wire or pseudo 3-wire mode is selected with the serial port, enter a communication rate as a decimal
number. The valid range for communication rates is from 100 Hz to 2.0000 MHz. Be sure to enter the unit also.
Up to six digits can be entered.
Example 100 Hz = 0.1 kHz = 0.0001 MHz
1 MHz = 1000 kHz (1000000 Hz is not recognized because it has 7 digits.)
Caution Generally, high-speed communication cannot be performed in pseudo 3-wire mode. Check the
operation at several hundred Hz and then increase the communication frequency within the
range at which correct operation can be performed. The reason is that it takes a long time to
write or verify programs at a low communication rate.
Some devices do not operate even at the communication rates that can be set for the PG-FP3.
Check the specifications of the device.
Entering a slave address for IIC (SIO CLOCK)
If IIC is selected for the serial port, enter a slave address as a hexadecimal number. The valid range is 8 to 77H.
Do not, however, enter the unit. This slave address can take any value within the range, but must not overlap
with the slave address of other devices on IIC.
Entering RAM SIZE
This value sets the packet size for communication with the target device and is determined by the parameter
definition information.
Entering the CPU clock source (CPU CLOCK)
Selects whether the clock for the target microcontroller is supplied from the PG-FP3.
On target board ....... Uses the clock of the target system.
In Flashpro .............. Supplies the clock of the PG-FP3 to the target.
Entering the clock frequency of the target system (Target board clock)
If [On target board] has been selected when a CPU clock source is being entered, enter a frequency as a
decimal number. The valid range is 1 to 99.999 MHz. Be sure to enter the unit also. Although up to six digits
can be entered, only the first three digits are used.
Example 4.19 MHz = 4190 kHz (4190000 Hz is not recognized because it has seven digits.)
If entered, 3.14159 MHz is recognized as 3.14 MHz.
52
CHAPTER 5 COMMAND REFERENCE
The clock is not supplied from the PG-FP3. Open the CLK pin of the target connector.
Connect the CLK pin of the target connector to the CLK pin of the target microcontroller.
For details of connection, refer to the manual for the device.
User's Manual U13502EJ2V0UM00